Monthly Archives: September 2015

Lync, Lync Client, S4B

Lync server security fix KB3080353 causing problems.

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(UPDATED) After we installed the Latest Lync server 2013 security fix (Security Update for Lync Server 2013 Web Components Server KB3080353) we have had severeal issues where users where unable to sign in to  Lync. This was the server complaining about the client certificate , normally it is the client complaining about the server certificate.

LyncCertError

Particulary users homed on VDI or Citrix /RDS and also some CommonareaPhones where affected. Inspecting the client log from a user login revealed :

Error:
There was an error communicating with the endpoint at ‘https://lyncserver.domain.local/WebTicket/WebTicketService.svc/mex’.
The server returned HTTP status code ‘500 (0x1F
09/18/2015|11:34:46.551 46A8:461C INFO  :: CUccPlatform::WriteStreamToLog:
09/18/2015|11:34:46.551 46A8:461C INFO  :: 4)’ with text ‘Internal Server Error’.
The server was unable to process the request.

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Exchange, Powershell

IMAP disabled in Exchange 2013 ServerComponentState.

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IMAP was enabled on the Exchange  server and had been used for a long time. One day the Exchange server’s IP subnet was placed in a Active Directory site without any Domain Controllers. Of course  Exchange the services stopped running after a while. When We managed to get it back to its original site and rebooted, everything looked OK.  But IMAP did not work. The Client software gave us the error “Invalid filed description”.

Tried to run “Test-ImapConnectivity” , error stated Authentication Failed . Verified account by successfully logging on to OWA. Reset password to be sure, same error.

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Exchange, Lync, Lync Client, S4B

Unable to join Lync\S4B from client schedule tab.

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skypeLatest issue was kind of a puzzle. When one organization sent Skype meeting invitation to another organization it was impossible to click on the meeting in the schedule tab of Skype/Lync.

“Join” functionality missing from sceduler tab in Skype or Lync.

s4b

Right click on the meeting gave nothing. The links in Outlook and OWA did work thoe. At first we thought it was something wrong with the client installation, but several reinstalls and updates later the conclution was that there had to be something wrong with the calendar entry.

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Lync, S4B, Skype for Business, Windows

Error installing Skype for Business server 2015

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Tried to install S4B server 2015 in my lab. Tried this from a computer with no internet access, also I did not install any prerequisites.

“Error: Prerequisite installation failed: Prerequisite installation failed: SqlInstanceRtc For more information, check your SQL Server log files. Log files are in the folder C:\Program Files\Microsoft SQL Server\MSSQL*.Rtc\MSSQL\Log, where the * represents your SQL Server version number. For example, SQL Server 2012 uses this path: C:\Program Files\Microsoft SQL Server\MSSQL11.Rtc\MSSQL\Log.”

installerror

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