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Skype for Business iOS App not functioning after latest update? RRS feed

  • Question

  • Hi There, 

    Environment: Skype for Business June CU On-Prem 

    1 X FE - W2K8R2
    1 X Edge - W2K8R2 

    I am running the latest version of the iOS application 6.10.1 and when I sign in it takes a long time on "Skype For Business is signing in" and eventually it says "We can't connect to the server. Check your network connection and server address and try again"

    I have asked other users to test and they also get the same message and are unable to log in. As far as I know these have all been from iPhones. 

    This was working fine up until recently and the access edge appears to be working fine and the event viewer not showing anything obvious. External access for SfB is working fine, and so is SfB generally as far as I can tell. 

    I couldn't figure out where to log a support ticket for the app specifically and I am not sure where to look to gather more logs or information to indeed confirm this is the problem or if it's something else I've missed. 

    Cheers
    Chris

    Chris

    Wednesday, December 14, 2016 4:36 AM

Answers

  • I have solved this problem. Thanks for your help. 

    Turns out another service has stopped the reverse proxy to stop working. I should have checked it better at the time!

    Thanks 

    Chris

    • Marked as answer by ceather93 Wednesday, December 21, 2016 4:24 AM
    Wednesday, December 21, 2016 2:59 AM

All replies

  • Hi ceather93,

    You should try the latest SFB server updates, maybe it will fix you problem, if it is server related

    https://support.microsoft.com/en-us/kb/3061064

    The app is working with the Skype fro business server for me at several SFB installations


    regards Holger Technical Specialist UC


    • Edited by Holger Bunkradt Wednesday, December 14, 2016 8:32 AM
    • Proposed as answer by Alice-Wang Thursday, December 15, 2016 5:52 AM
    Wednesday, December 14, 2016 8:30 AM
  • Thanks. I can do that, although we are only one update behind? Is there a few to get logs from the client or server just specifically for attempted connections from the mobile application? Since the error message contains no useful information it's hard to know where to start. 

    Chris

    Wednesday, December 14, 2016 10:36 PM
  • Hi ceather93,

    Welcome to post in our forum.

    As Holger said, please try to install the latest update for your SFB server and test if the issue persists.

    Did you encounter the issue with Android phone or windows phone?

    What product did you use for your reverse proxy? Please check the configuration of your reverse proxy.

    Moreover, you could use Microsoft remote connectivity analyzer test if there is any error.
    https://testconnectivity.microsoft.com/

    The following blog is about how to troubleshooting Lync mobility issue, please refer to
    https://blogs.technet.microsoft.com/nexthop/2012/02/21/troubleshooting-external-lync-mobility-connectivity-issues-step-by-step/

    Hope this reply is helpful to you.


    Regards,

    Alice Wang


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    • Proposed as answer by Liinus Thursday, December 15, 2016 10:59 AM
    Thursday, December 15, 2016 6:08 AM
  • Hi There, 

    Will do the update later tonight. 

    I have no Android phone to test with at the moment but If I can get a hold of one I will try. 

    It appears the tesconnectivity is still down. This was one of the first things I went to try 

    https://social.technet.microsoft.com/Forums/en-US/2a3ab014-72d0-45f2-b6ef-3f142a6daa09/remote-connectivity-analyzer-verification-challenge-always-fails?forum=exchangesvrgeneral

    The reverse proxy is IIS. I will check the configuration now and see if that is still working as expected. 
    Thanks 
    Chris 

    Chris

    Thursday, December 15, 2016 10:57 PM
  • Hi ceathe93,

    Thanks for your response.

    Did the issue resolved by installing the latest update?

    You could also use SFB debugging tool
    https://www.microsoft.com/en-us/download/details.aspx?id=47263


    Regards,

    Alice Wang


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Friday, December 16, 2016 9:24 AM
  • Hi Alice, 

    Applied latest updates and still have the issue. 

    I assume I would run these tools directly on the front-end? Are there are specific instructions on how to collect diagnostic information for just the mobile app as everything else seems to be working fine?

    Regards
    Chris

    Chris

    Saturday, December 17, 2016 12:15 AM
  • Still no luck here. The remote connectivity tool is finally up and running! It's passed with no errors though.  

    Where else can I look for more diagnostic information? The error from the mobile app is incredibly unhelpful

    Chris

    Tuesday, December 20, 2016 12:44 AM
  • Actually went to run another test on the remote connectivity Analyser and got this 

    Date: 12/20/2016 12:45:16 AM
    Server: RD00155D535A6F
    Type: System.TypeInitializationException
    Message: The type initializer for 'Microsoft.Exchange.ExchangeSystem.ExTimeZone' threw an exception.
    Correlation ID: e497915b-670c-4b75-91d9-cfceecf6cc7e

    Chris

    Tuesday, December 20, 2016 12:46 AM
  • I have solved this problem. Thanks for your help. 

    Turns out another service has stopped the reverse proxy to stop working. I should have checked it better at the time!

    Thanks 

    Chris

    • Marked as answer by ceather93 Wednesday, December 21, 2016 4:24 AM
    Wednesday, December 21, 2016 2:59 AM
  • I have solved this problem. Thanks for your help. 

    Turns out another service has stopped the reverse proxy to stop working. I should have checked it better at the time!

    Thanks 

    Chris

    Hi ceather93,

    That's cool and thanks for your sharing, please try to mark your reply as an answer, it will help others who have the similar issue.


    Regards,

    Alice Wang


    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.


    • Edited by Alice-Wang Wednesday, December 21, 2016 3:05 AM
    Wednesday, December 21, 2016 3:05 AM