Welcome to Microsoft Lync 2013.
Please refer to the provided End-User License Agreement for license information.
The following list contains important facts about the 2013 release of Lync desktop program, Lync Web App, Lync Windows Store app, and Lync Server. For Lync Online issues, please see Office 365 known issues.
What products have issues?
Lync desktop program (release)
Lync desktop program (preview)
Lync Web App (preview)
Lync Mobile (release)
Lync Windows Store app (release)
Lync Windows Store app (February 2013 update)
Lync Server (release)
Lync Server (preview)
Lync desktop program (release)
Missed call notification when delegate answers call for his or her boss
If a boss has more than one delegate, and a delegate answers a call on behalf of the boss, the other delegates will receive a missed call notification.
Workaround After your organization upgrades to the Lync Server 2013 Cumulative Update, this issue should be fixed.
Can’t see sharing indicator outline or app sharing toolbar in Windows 8 style app and Windows 8 Start screen when sharing desktop
When you share your desktop, everything on your screen is shared. Meeting participants can view Windows 8 style apps and the Windows 8 Start screen while you share your desktop, but you (the sharer) won’t see anything to indicate that you are sharing your desktop.
Poll can’t be created when its name contains certain special characters
In the Danish version of the Lync desktop client, polls can’t be created when the poll name contains a special character such as ?, @, #.
Workaround To successfully create a poll, use a name that doesn’t contain any special characters.
Unshared overlapping windows block the visible area appear as black boxes
When sharing Windows Presentation Foundation (WPF) applications on Windows 7, any unshared overlapping windows block the visible area appearing as a black box.
Workaround Minimize or move applications that aren’t being shared such that there's no overlap.
Third-party applications using transparent windows might show the whole desktop
Third-party applications that use transparent windows might show the whole desktop even if only the application is shared.
Workaround There is currently no workaround available.
Deleting a Lync Recording while being published causes new recordings to not show in the Recording Manager
If a recording is deleted while it is in the "processing" state, a new recording won’t show in Recording Manager until the Recording Manager is restarted. The new recordings will also not be processed.
Workaround Exit and restart the Recording Manager.
Lync recordings on Windows 8 can take a very long time to complete
Some recordings can take a very long time to process. This will appear more often for those with limited network connectivity.
Workaround Install the released version of Windows 8.
Lync Recording contains random users' videos
If you join the meeting by dialing in to the conference using the CAA numbers in the meeting invite and use Lync to dial in, and then start to record, the recording will show a random person's video (assuming there are more than 1 person sharing video). The expected design is the only the active speaker video is shown.
Workaround Join the meeting using the meeting URL and not by dialing in.
Year of a conversation, chat, or call is missing the last digit in Arabic Lync at 125% DPI
The date (the year of a conversation, chat, or call) is missing the last digit in Arabic Lync at 125% dots per inch (DPI).
Workaround When you resize or scroll, the issue will disappear. Also, in most cases you will probably remember the year in question and should not be affected by the loss of a digit from the year.
Sharer see multiple “now sharing” message when sharing Spotify application
When sharing Spotify application, sharer sees multiple "now sharing" messages while the viewer sees cropping around the edges of the application.
Workaround Share Spotify application using desktop sharing.
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Lync desktop program (preview)
App sharing hangs in Windows 8 while sharing Internet Explorer window
When you share a Windows Internet Explorer window on Windows 8 Release Preview, Lync might stop responding (seem to crash).
Workaround Share the desktop or monitor instead of the Internet Explorer window.
Lync in VDI: Can’t turn-off receiving audio in stereo
When participating in a Lync Room System meeting, you can’t turn-off receiving stereo sound, which might result in partial loss of the meeting audio.
Workaround No workaround is available. But you can change the audio output on the local system's device by doing these steps:
- Right click the speaker icon on taskbar.
- Click Playback devices.
- Select the stereo audio device, and then click Properties.
- On the Advanced tab, change the default format from 2 channel to 1 channel.
- Click Apply > OK.
Windows taskbar is displayed on top of the Lync conversation window when in full screen view
When the conversation is in full screen view, the Windows taskbar might appear on top of the window and hide the control bar. So you can’t get to the mode bar buttons to control the meeting. This issue can occur on Windows 7 or Windows 8.
Workaround You can exit full screen view by doing one of the following:
- Press the Escape key.
- Move the mouse to the top of the screen.
- Click the Exit Full Screen View button to exit the full screen view.
Lync in VDI: Can’t lock video in a large meeting
When you participate in a large meeting using Lync in VDI, the meeting presenter doesn’t have the ability to lock video spotlight on someone.
Workaround No workaround is available. But a Presenter can join the meeting using Lync desktop program on his or her computer to lock the video spotlight on someone during the meeting.
Lync in VDI: Hear audio before conversation window is fully opened
When you join a large meeting using Lync in VDI, you might start hearing meeting audio before the meeting conversation window is fully opened.
Workaround No workaround is available.
Closing a conversation from the taskbar closes wrong conversation
If multiple tab conversations are open and you use the Windows taskbar to close a non-selected tab conversation, the selected conversation gets closed instead.
Workaround You can close the conversation in the tab window by doing one of the following:
- Select the tab you want to close, and click the x in the top right corner of the window. When you are asked to close the current tab or all tabs, select to close the current tab.
- Click the x that appears when hovering over the tab in the tab list (left part of the tab window).
Can’t minimize Lync window by clicking the Lync icon in Windows taskbar
If the Lync main window is open and visible on the desktop, clicking the Lync icon in the Windows taskbar doesn’t minimize the window.
Workaround To minimize the Lync main window when it is visible on the desktop, click the Minimize button in the title bar.
Unpinned contacts don’t appear under the Favorites group
The Show only pinned contacts option is turned on by default. So the system generated most frequently used contacts are hidden.
Workaround Right click the Favorites group, and then uncheck the Show only Favorite contacts box.
Video might not show in Lync recordings on Windows 8 Release Preview
If you record a Lync meeting on Windows 8 and the meeting contains video, the recording might contain a blank video instead of actual speaker video.
Workaround Republish the recording from the Lync Recording Manager by clicking Recording > Publish > OK.
App sharing scrambled in Lync recordings
If your screen resolution is set to 1368x768, and the meeting is recorded with an App Sharing session, the App Sharing might appear scrambled in the recording.
Workaround Change your resolution to be something other than 1368x768.
Can’t join meetings with Lync 2010 on Windows 8
On Windows 8, if you have both Lync 2010 and 2013 installed, and are signed in to Lync 2010, you can’t join meetings.
Workaround Do one of the following:
- Sign out of Lync 2010 to join meeting using 2013.
- Uninstall 2013 to start joining meetings using Lync 2010 only.
Call forwarding settings aren’t preserved properly
If you are in Remote Call Control or Remote Call Control Only telephony mode (not Enterprise Voice) and publish a mobile number and then add a different number in the call forwarding settings in the Options dialog box, Lync chooses the mobile number to forward calls to instead of the newly added number.
Workaround Try to publish the newly added number and select that number for call forwarding.
Names show up as SIP URIs in the On behalf of menus for Response Groups
When you are part of a Response Group Service and click to call a contact, the Response Group Names aren’t resolved to the right name; instead, the SIP URI for a contact appears.
Workaround No workaround is available at this time.
Holding down the 1 button from the dial pad on the Phone Environment isn’t working
A hold down (long-press) of the 1 button on the Phone Environment dial pad isn’t working.
Workaround Click Voicemail gear > Call Voicemail.
East Asian characters in IM
Messages from people using Lync 2010 in an IM conference with more than two participants show all East Asian characters (Chinese, Korean, or Japanese) displayed as squares in the conversation window.
Workaround Select the squares and change the font to one for displaying East Asian characters, for example, MS PMincho for Chinese (Traditional).
Out of memory issues
On x86 you can run into out-of-memory issues causing application and desktop sharing glitches, such as screen partially or completely blacked out. This might also effect overall performance of other applications and operating system and eventually cause Lync to crash.
Workaround You can restart Lync once a day to help avoid this issue. If you’re still running into this issue, more frequent restarts could be necessary. During a meeting if restarting isn’t an option, turning off video also helps this issue.
Joining Lync meetings with Office Communicator
If you are logged into Office Communicator 2007, even if you have Lync 2010 or 2013 installed, you can’t join Lync 2010 or 2013 meetings.
Workaround Try one of the following:
- Log out of Office Communicator 2007 to join meetings using Lync 2010 or 2013.
- Uninstall Lync 2010 and Lync 2013 to use the Lync Web App to join a meeting.
Unshared overlapping windows block the visible area and appear as black boxes
When you share Windows Presentation Foundation (WPF) applications on Windows 7, any unshared overlapping windows block the visible area— making them appear as a black box.
Workaround Minimize or move applications not being shared so they don’t overlap.
PowerPoint Sharing: Slides aren’t appearing or showing up as black slides
When you use PowerPoint Sharing, the slides aren’t appearing or are showing up as black slides.
Workaround If your Internet Explorer security settings are set to a high level, the Lync PowerPoint Sharing feature won't work. To use this feature, lower your Internet Explorer security settings and/or turn off features such as Internet Explorer Enhanced Security Configuration (which is on by default in Windows Server 2008 R2).
No UI or app sharing toolbar is shown in Windows 8 while sharing desktop
When you share your desktop in Windows 8, everything on your screen is shared. While meeting participants can view applications through desktop sharing, no user interface (UI) or app sharing toolbar is shown— indicating to the sharer that desktop sharing is in progress.
Workaround No workaround is available at this time.
Ghost window appears when closing conversation in a tab window
If you have two conversations tabbed, closing one of the conversations using the X button in the top right corner causes a ghost window to appear behind the window.
Workaround You can minimize and maximize the tab window to get rid of the ghost window. Or you can use close the tab using the X button on the tab itself.
Can’t click hyperlink to join meeting when Chrome is default browser
You can’t join an online meeting by clicking the hyperlink in a meeting invitation when Google Chrome is the default browser.
Workaround You can join the meeting by clicking the links in the Microsoft Outlook meeting request or join the meeting using Lync Web App.
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Lync Web App (preview)
Lync Web Scheduler can’t resolve participants
If the search criteria don’t uniquely match to one and only one entry in Address book, the Scheduler can’t resolve the participant’s names.
Workaround Use the full email address of participants and presenters you want to invite. Because email addresses are meant to be unique, the name resolution succeeds and meeting will be created.
Extra-large meetings aren’t supported
A meeting isn’t supported if it has around 1,000 attendees.
Workaround No workaround is available at this time.
Repeatedly asked for user name and password in ADFS
When you use the Google Chrome browser and try to authenticate yourself, the Active Directory Federation Services (ADFS) page asks you multiple times for your user name and password. No matter how many times you enter the correct credentials, you aren’t signed in.
Workaround Install IE Tab extension in Chrome and access Lync Web App window in an IE Tab.
Details in Join Info dialog box doesn’t show toll/toll-free number or passcode
When you open the Join Info dialog box, you won’t see the toll/toll free dial-in numbers or the participant passcode. Currently only one number is shown (we don’t know if it’s toll or toll-free), and passcode is shown as Conference ID.
Workaround Use the details in the original meeting invite request to invite others to the meeting.
Can’t join meeting if Kerberos only authentication on HTTP Proxy and Mac OS
If Kerberos-only authentication is enabled at the HTTP proxy layer, you can’t authenticate/join the meeting on Mac OS X operating system.
Workaround No workaround is available at this time.
Thickness of annotations affected
Whenever someone using the Lync 2010 client moves the annotation created by Lync 2013 or Lync Web App, the thickness of the annotation is affected.
Workaround No workaround is available at this time.
App sharing on Mac OS
The following features aren’t available on the Mac OS: cropping, program sharing, or remote control capabilities.
Workaround No workaround is available at this time. You can only share the desktop on Mac.
Can’t see PowerPoint content on earlier Lync/OC desktop programs
If you upload Microsoft PowerPoint content, it can’t be viewed on earlier versions of Lync programs.
Workaround No workaround is available at this time. Earlier versions of Lync programs show a notification that this content is unsupported. You can see the content if you use the 2013 version of Lync or Lync Web App.
Can’t save annotations using Internet Explorer 8
You can’t save poll, whiteboard, or a slide with annotations on Windows Internet Explorer 8.
Workaround No workaround is available at this time.
Asked if a 15 Technical Preview customer
When clicking a meeting URL on a computer without Lync desktop program installed, you see a page asking if you are a 15 Technical Preview customer. If you aren’t, the 2010 version of Lync Web App opens.
Workaround The admin should turn on the public disclosure by changing a SQUID setting to:
Set-csWebServiceConfiguration –IsPublicDisclosureAllowed $true
High-contrast scheme
Content around a modal dialog box, a dialog box you interact with, goes white or black when use the high-contrast scheme.
Workaround No workaround is available at this time.
App Sharing on Windows 8 might share content that comes over from shared application
When you share an application in desktop mode and move to the Windows 8 mode, the portion of the screen that overlaps the application that was shared appears in the meeting.
Workaround You can minimize the shared application or stop sharing before going to Windows 8 mode.
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Lync Mobile (release)
Unable to sign in and unable to fetch meetings and voice mail from Windows Phone 8 devices
If your organization requires internally published server root certificates for users to access Lync and Exchange (as well as other Office programs) and using Certificates without HTTP Certificate Revocation Lists (CRLs), these certificates won’t be accepted. This leads to the inability to sign in in case of Lync Certificates or inability to get meetings and voice mail in the app in case of Exchange certificate. This problem will be encountered only on Windows Phone 8 devices.
Workaround Your organization will need to publish server root certificates with HTTP CRLs included. These certificates will be installed and accepted on Windows Phone 8 devices.
On some Wi-Fi networks, calls can disconnect while in an audio or video call
On some Wi-Fi networks, an iOS mobile client (like iPhone 3, 4, 4S, or 5, iPad 1) can disconnect calls while in an audio or video call.
Workaround Disable 802.11k or disable max-tx-fail check on the wireless controller (this check is used to disconnect the device if the number of failed packet transmission passes certain threshold).
Mobile user isn’t removed from a conference when disconnects outside voice call
If you join a conference using outside voice, you aren’t removed from the conference when you end the call portion of the conference. Others in the conference will still see you as connected.
Workaround No workaround is available at this time.
No presence for the federated contact whereas desktop shows the presence
If you have federated contacts hosted on servers, you might not see the presence for these contacts.
Workaround No workaround is available at this time.
Presence for Skype/PIC contacts may not be updated immediately
When a group with a Skype/PIC contact is expanded and the mobile client creates a presence subscription and immediately sends a query for the presence, an issue on the server is triggered. This results in the Skype/PIC contact's presence being shown in the correct state initially, but stops and updates until 30 minutes has passed. If the Skype/PIC user changes his or her presence, the new state won’t be reflected on Lync Mobile.
Workaround No workaround is available at this time.
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Lync Windows Store app (release)
You may not be able to end a call when the connection to Lync server is lost
If Lync Windows Store app loses the connection to Lync server during a call or conversation, the audio may still continue. Lync displays the sign-in screen with a notification to close active conversations. If you select Yes in the notification, the call ends. If you select No, the notification disappears and you have no way to end the conversation until the connection to the server is restored.
Workaround For a person-to-person call, ask the other party to end the call. If in a conference, you can end the call in one of the following ways:
- log out from Windows
- restart the device
- end the Lync task from Windows Task Manager
Lync Windows Store app can’t connect if the time setting on the device is not in close synchronization with the time setting on the Lync server
Sign-in will fail if the time and date on your device is not set accurately. This is particularly important for devices that are not joined to a domain, such as Microsoft Surface or other devices running Windows RT.
Workaround Set the time on your device to within 5 minutes of the time and date on the server. It is not necessary to match the time zone.
Lync Windows Store app may not be able to access the Lync server or services through some network adapters
Lync Windows Store app may not be able to access the Lync server or services through network adapters, such as 4G LTE USB modems, that don’t register with Windows 8 as physical devices. Lync Windows Store app may have this issue even when the desktop apps and browsers are able to access other servers and websites.
Workaround Connect to Lync server or services through Wi-Fi or a different network adapter.
Lync does not run on Windows 8 N and KN editions without the Windows Media feature pack
Lync requires components of Windows Media Player, but this product is not installed by default with the Windows N edition.
Workaround Install the Windows Media feature pack for N and KN versions of Windows 8. For more information about this feature pack, see Description of the Windows Media Feature Pack for N and KN Versions.
When both Lync Windows Store app and Lync 2013 (desktop) are installed, the wrong client is used to join meetings
If you have both Lync Windows Store app and Lync 2013 for the desktop installed on your PC, you have to set one of them as the default client to use for meetings.
Workaround The first time you select the Join Lync Meeting link in an Outlook calendar reminder to connect to a meeting, the Default Meeting Client dialog box displays. Select either Microsoft Lync or Lync (which means Lync Windows Store app) and select OK. The next time you join a Lync Meeting from an Outlook calendar reminder, the meeting client you selected will be used automatically.
If you change your mind later, you can easily change the default meeting client. Here’s how:
- Swipe in from the right edge of the Windows Start screen and select Search. If you’re using a mouse, point to the top-right corner of the screen, move the mouse down and click Search.
- Type “default programs” in the text box, and from the search results, select Default Programs.
- Select Set your default programs, and then select the app you want from the list under Programs – either Lync (desktop) or Lync.
- Select Set this program as default and select OK.
Important Even if you set Lync 2013 for the desktop as your default meeting client, the Join Lync Meeting button on the Lync Windows Store app home screen will always connect you to the meeting using Lync Windows Store app.
Your presence status is stuck as In a Meeting or Out of Office when using Lync Windows Store app on two devices
Lync Windows Store app publishes your presence status based on your activity and calendar. If the app publishes a calendar status (such as In a Meeting or Out of Office) on a device but you don’t remain active on that device, then Lync Windows Store app changes the status to Away. If you open Lync Windows Store app on another device later, your presence status may continue to display as In a Meeting or Out of Office, even though this calendar status is no longer valid.
Workaround Open Lync Windows Store app on the first device so that it can reset the status based on the current calendar state.
An incorrectly typed sign-in address can cause Lync Windows Store app to display an error that the server is temporarily unavailable
If you mistype the sign-in address, Lync Windows Store app might display the message Cannot sign in because the server is temporarily unavailable. If the problem continues, please contact your support team..
Workaround Re-type the sign-in address correctly and try signing in again.
Lync Windows Store app may not be able to re-establish a connection after changing networks when it is running in the background
In some cases when the network to which the device is connected changes, Lync Windows Store app may not able to sign in again when it is running in the background. This can happen when switching from one Wi-Fi network to another or when switching between Wi-Fi and 3G or 4G cellular networks. When this happens, the Lync tile on the Windows Start screen will display the signed out state, and you won’t receive any IMs or calls.
Workaround Open Lync Windows Store app. On the sign-in screen, select Cancel to stop automatic sign-in. Then select Sign in to sign into Lync Windows Store app.
Difficulty managing multiple conversations from the app commands
You may not be able to tell when a new conversation request comes in or when an existing one is highlighted because of an update. Switching between conversations might also be confusing due to reordering of the conversation tiles.
Workaround No workaround is available at this time.
Can't copy and paste into the dial pad
You can’t copy and paste a phone number into the dial pad to place a call.
Workaround Type in the phone number manually.
Can’t re-associate the tel: protocol after Skype is installed
If Skype is installed on a device after Lync, you can’t use Lync for the tel: protocol.
Workaround No workaround is available at this time.
Can’t select audio device through Lync Windows Store app
You can’t choose the audio device to use with Lync Windows Store app because the app automatically uses the audio device set as the default in the Playback and Recording tabs of the Sound dialog box in Windows. uses the “Default Communications Device” (which is a part of the Sound dialog) in the OS.
Workaround No workaround is available at this time.
Calling a number in your own profile doesn’t work
If you’ve published a mobile or other number in your own profile, and you try to call that number from the contact card or from the dial pad, the call does not complete.
Workaround To be able to call the number, you must unpublish it from your profile.
Lync Windows Store app crashes or hangs when you unplug a CX300 device during a call
You may experience an intermittent Lync Windows Store app crash or the app may hang when you unplug a CX300 device in the middle of a call.
Workaround Unplug the device before or after a call to avoid this issue.
After dialing a contact in the Favorites group from the dial pad, subsequent calls through the Favorites group fail
If a user uses the dial pad to type in the number of a contact in the Favorites group, subsequent calls by hovering over the contact's name within the group, and clicking the phone number fail.
Workaround Type in the phone number manually on the dial pad.
If you click and drag text in a conversation window, the window drags
If you select a block of text in a conversation window, the window drags instead.
Workaround No workaround is available at this time.
RTL: PSTN number is mirrored in contact picture
If you're using an RTL language such as he-IL, the phone numbers for your PSTN contacts in the groups for Lync, might have a mirrored display.
Workaround This is a display issue and does not affect calling the phone numbers.
Can’t see the cursor in the message box of the conversation window when using High Contrast mode 1
If you’re in High Contrast mode #1 in Windows, you may not be able to see the cursor blinking in the message box during an IM conversation.
Workaround This is a display issue and does not affect typing in the text box.
After signing in from multiple clients, calls may begin to fail
If you sign into Lync 2013 for the desktop from 16 or more endpoints (not all at once, but over the course of time), your calls from Lync Windows Store app might fail even if you’re able to sign into the app itself. Admins troubleshooting this issue may see SIP 403 Forbidden for the call INVITE (ms-diagnostics: 4172;reason="No cert found for the user”).
Workaround Sign out of Lync Windows Store app and sign in again.
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Lync Windows Store app (February 2013 update)
Sharing and video call invitations fail on some mobile 4G networks
On some mobile 4G networks, you may not be able to send or receive video in meetings and video calls or to see shared content in meetings. When you’re in a call or meeting, a notification will be displayed that video or sharing is available, but clicking Accept will result in a failure because the mobile network connection is temporarily lost.
Workaround No workaround is available at this time.
Incoming calls or instant messages (IMs) for Lync on mobile broadband
There are a few known issues for people running Lync on mobile broadband:
- Lync Windows Store app might get suspended for up to 15 minutes after an incoming call isn’t answered when the app is in the background. This means that other incoming calls or IMs may not be received during this time. This might also happen after you switch networks, roam, or have other types of incoming invitations that aren’t answered.
- Lync Windows Store app might not auto-accept IMs on mobile broadband if you’re also logged into another Lync client. You might not receive this missed IM in your conversation history or in your Inbox.
- Lync Windows Store app might not auto-accept IMs for incoming conference invites on mobile broadband whether or not you’re logged into another Lync client. You might not receive this missed IM in your conversation history or in your Inbox.
- When Lync Windows Store app is in the background, if you decline an incoming call on mobile broadband by dismissing the notification, the call will keep ringing in other active Lync devices.
Workaround No workarounds are available at this time.
Windows device in Connected Standby might ring for an incoming call but no notification is displayed
If you have a Windows device in connected standby mode (plugged in, but your screen is turned off), and then you turn on the screen and receive an incoming call, you might not be able to see the incoming call notification to answer it, but you will continue to hear ringing.
Workaround You can lock the screen to stop the ringing. Then if you unlock it, everything should work as usual.
Skill search isn’t supported for Lync Online accounts (O365)
If you open the Search charm, type the text you want in the search text box, and select SKILL as the criterion to display search results, you get the following message:
Somewhere, there was a missed connection, and now your results may not be up to date.
Workaround No workaround is available at this time.
Members of distribution groups may not be displayed in the contact list
When you open the Contact list the first time, Lync retrieves the members of each distribution group in the list. However, if there is a server connection issue when the Contact list is opened for the first time, the distribution groups will display as empty.
Because no error message is displayed when a distribution group doesn’t expand, it appears that Lync can’t work with distribution groups.
Workaround The workaround for this issue is to sign out of Lync Windows Store app and sign back in again.
Gallery view has a missing slot
When a participant is being switched to standing row from sitting row, the following happens:
- A fade-out animation for the participant in the sitting row.
- A fade-in animation for the participant in the standing row.
If the participant switches to a dominant speaker view (Full Screen or any other view) before the fade-out animation finishes and the fade-in animation begins, the fade-in animation doesn’t start and the participant stays in a hidden state.
Workaround The workaround is to go to Full Screen view again and then get back to Gallery view.
You may not be able to end a call when the connection to Lync server is lost
If Lync Windows Store app loses the connection to Lync server during a call or conversation, the audio may still continue. Lync displays the sign-in screen with a notification to close active conversations. If you select Yes in the notification, the call ends. If you select No, the notification disappears and you have no way to end the conversation until the connection to the server is restored.
Workaround For a person-to-person call, ask the other party to end the call. If in a conference, you can end the call in one of the following ways:
- log out from Windows
- restart the device
- end the Lync task from Windows Task Manager
Lync Windows Store app can’t connect if the time setting on the device is not in close synchronization with the time setting on the Lync server
Sign-in will fail if the time and date on your device is not set accurately. This is particularly important for devices that are not joined to a domain, such as Microsoft Surface or other devices running Windows RT.
Workaround Set the time on your device to within 5 minutes of the time and date on the server. It is not necessary to match the time zone.
Lync Windows Store app may not be able to access the Lync server or services through some network adapters
Lync Windows Store app may not be able to access the Lync server or services through network adapters, such as 4G LTE USB modems, that don’t register with Windows 8 as physical devices. Lync Windows Store app may have this issue even when the desktop apps and browsers are able to access other servers and websites.
Workaround Connect to Lync server or services through Wi-Fi or a different network adapter.
Lync does not run on Windows 8 N and KN editions without the Windows Media feature pack
Lync requires components of Windows Media Player, but this product is not installed by default with the Windows N edition.
Workaround Install the Windows Media feature pack for N and KN versions of Windows 8. For more information about this feature pack, see Description of the Windows Media Feature Pack for N and KN Versions.
When both Lync Windows Store app and Lync 2013 (desktop) are installed, the wrong client is used to join meetings
If you have both Lync Windows Store app and Lync 2013 for the desktop installed on your PC, you have to set one of them as the default client to use for meetings.
Workaround The first time you select the Join Lync Meeting link in an Outlook calendar reminder to connect to a meeting, the Default Meeting Client dialog box displays. Select either Microsoft Lync or Lync (which means Lync Windows Store app) and select OK. The next time you join a Lync Meeting from an Outlook calendar reminder, the meeting client you selected will be used automatically.
If you change your mind later, you can easily change the default meeting client. Here’s how:
- Swipe in from the right edge of the Windows Start screen and select Search. If you’re using a mouse, point to the top-right corner of the screen, move the mouse down and click Search.
- Type “default programs” in the text box, and from the search results, select Default Programs.
- Select Set your default programs, and then select the app you want from the list under Programs – either Lync (desktop) or Lync.
- Select Set this program as default and select OK.
Important Even if you set Lync 2013 for the desktop as your default meeting client, the Join Lync Meeting button on the Lync Windows Store app home screen will always connect you to the meeting using Lync Windows Store app.
Lync Windows Store app may not be able to re-establish a connection after changing networks when it is running in the background
In some cases when the network to which the device is connected changes, Lync Windows Store app may not able to sign in again when it is running in the background. This can happen when switching from one Wi-Fi network to another or when switching between Wi-Fi and 3G or 4G cellular networks. When this happens, the Lync tile on the Windows Start screen will display the signed out state, and you won’t receive any IMs or calls.
Workaround Open Lync Windows Store app. On the sign-in screen, select Cancel to stop automatic sign-in. Then select Sign in to sign into Lync Windows Store app.
Can’t re-associate the tel: protocol after Skype is installed
If Skype is installed on a device after Lync, you can’t use Lync for the tel: protocol.
Workaround No workaround is available at this time.
Can’t select audio device through Lync Windows Store app
You can’t choose the audio device to use with Lync Windows Store app because the app automatically uses the audio device set as the default in the Playback and Recording tabs of the Sound dialog box in Windows. uses the “Default Communications Device” (which is a part of the Sound dialog) in the OS.
Workaround No workaround is available at this time.
After signing in from multiple clients, calls may begin to fail
If you sign into Lync 2013 for the desktop from 16 or more endpoints (not all at once, but over the course of time), your calls from Lync Windows Store app might fail even if you’re able to sign into the app itself. Admins troubleshooting this issue may see SIP 403 Forbidden for the call INVITE (ms-diagnostics: 4172;reason="No cert found for the user”).
Workaround Sign out of Lync Windows Store app and sign in again.
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Lync Server (release)
Lync crashes in RAP/RAIL unless tabs/folders are enabled
Lync Server crashes on startup/sign-in in a RemoteApp configuration unless Lync has both tabbed conversations and conversation folders enabled in Lync.
Workaround Enable tabs/folders or use another way to provide remote access to Lync. For Lync Server 2013, we recommend you use the Lync VDI feature.
Can't Autodiscover Exchange Server from DNS SRV records
Lync Server can't automatically discover an Exchange Server using DNS SRV records. Instead Lync Server must use the HTTP Autodiscovery feature to find the Exchange Server.
Workaround Ensure the HTTP Autodiscovery feature is properly deployed in your Exchange Server environment so Lync Server can connect to the Exchange Web Services.
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Lync Server (preview)
Device tuning page isn’t supported for Lync in a VDI environment
Lync in VDI doesn’t allow you to manually select and tune your audio/video devices to use with Lync.
Workaround This is by design. To tune your audio/video devices, use the System Device Tuning page on the access computer or adjust the speaker volume level during a call.
Video peek says camera isn’t set-up or is already in use
When using Lync in VDI, the text message for video peek might be wrong and cause confusion if the webcam is actually working.
Workaround No workaround is available at this time. But if the webcam is plugged into the local computer, you should ignore this message and click the Video button in the conversation window to start the video.
Video stops rendering when local user starts desktop sharing on Windows 8 RC (build 8400)
In a multi-party online meeting with audio and video, if you use Lync in VDI and start desktop sharing, the local user can’t see local and/or remote part video in the call/conversation window. But the video is still sent and received on the call.
Workaround No workaround is available at this time. But you can use application sharing in Lync instead of desktop sharing to avoid the problem.
Lync in VDI doesn’t see the people over content layout
When joining a scheduled online meeting with content and video already started by remote participants, if you use Lync in VDI you don’t see the photo or video over the content layout.
Workaround No workaround is available at this time. To see local and remote participant video, you can hide the content in the conversation window.
Active talker name isn’t in-sync with active talker photo or video
When using Lync in VDI to join an online meeting with more than three participants taking turns talking, the active talker name as shown on the people region might be out of sync.
Workaround No workaround is available at this time.
No support for SIP and/or RDP session resiliency
During an ongoing call/conversation, if an outside Lync client loses SIP connection to Lync Server, the call gets dropped.
Workaround No workaround is available at this time.
Lync fails to start on Windows Server
On computers running Windows Server, Lync fails to start because the MFPlat.dll is missing.
Workaround To start Lync on Windows Server, install Desktop Experience by choosing Server Manager > Features > Add Features > Desktop Experience.
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