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Lync 2013 Mobile client - Configuration has changed

    Question

  • I keep getting this message every few hours on a Lync 2013 Mobile client running on an iPhone:

    "Your server configuration has changed. Please restart Lync."

    The configuration has not been changed and this also happens in the middle of the night. I don't currently have access to any other devices that can run the Lync 2013 mobile client, so I don't know whether this is an Lync mobile client issue or a Lync server issue.

    I'm using the February 2013 Lync 2013 cumulative updates.

    Wednesday, March 20, 2013 5:36 AM

Answers

  • I had increased the ProxyPass timeout earlier today and I haven't seen the "configuration has changed" message for the past 10 hours since I changed it. I'll update this thread if it shows up again.
    • Marked as answer by dkhouri Tuesday, April 02, 2013 6:49 AM
    Thursday, March 21, 2013 2:57 PM

All replies

  • Hi,

    It is better to test the issue on other devices.

    What software you used as reverse proxy?

    Kent Huang
    TechNet Community Support


    • Proposed as answer by Kent-Huang Thursday, March 21, 2013 2:54 AM
    • Unproposed as answer by Kent-Huang Thursday, March 21, 2013 2:54 AM
    • Edited by Kent-Huang Thursday, March 21, 2013 2:54 AM
    Thursday, March 21, 2013 2:53 AM
  • What are you using as your reverse proxy?

     

    Anything in the device log on the iPhone?

    Thursday, March 21, 2013 2:58 AM
  • Cross-post with device log: http://social.technet.microsoft.com/Forums/ru-RU/lyncdeploy/thread/73aa3996-2080-486b-bb3e-929db6a38477

    That iOS issue is quite global around in the forum.
    I bet we need a fast iOS.app update from Microsoft. Nice Lync 2013 mobile app becomes quite useless with massive error notifications.

    • Proposed as answer by i3laze_ Thursday, March 21, 2013 4:55 AM
    • Unproposed as answer by i3laze_ Thursday, March 21, 2013 4:55 AM
    • Edited by i3laze_ Thursday, March 21, 2013 5:18 AM
    Thursday, March 21, 2013 4:44 AM
  • Cross-post with device log: http://social.technet.microsoft.com/Forums/ru-RU/lyncdeploy/thread/73aa3996-2080-486b-bb3e-929db6a38477

    That iOS issue is quite global around in the forum.
    I bet we need a fast iOS.app update from Microsoft. Nice Lync 2013 mobile app becomes quite useless with massive error notifications.

    I saw one person in that post that said they deployed TMG and the issue went away.  This is why I'm curious what reverse-proxy is being used.  I'm using TMG and have not experienced this error at all.

     

    I know IIS ARR is becoming more popular, especially since the NextHop post, low price point and the announced sunset of TMG, but perhaps it's something in the IIS AAR configuration.



    Thursday, March 21, 2013 6:11 AM
  • Blaze, can you confirm that you've used the Lync 2013 Windows Mobile 8 client on your same deployment and didn't see this issue?

    I'm using Apache as the reverse proxy and I've used this setup with no issues in the past with Lync 2010. I'll post the device log once I get a hold of it.
    Thursday, March 21, 2013 6:12 AM
  • I'm using Apache as the reverse proxy and I've used this setup with no issues in the past with Lync 2010.

    I'm seeing a lot of IIS ARR and Apache with this issue.  Still waiting to see someone with TMG having this problem...

     

    Thursday, March 21, 2013 6:15 AM
  • Blaze, can you confirm that you've used the Lync 2013 Windows Mobile 8 client on your same deployment and didn't see this issue?

    I'm using Apache as the reverse proxy and I've used this setup with no issues in the past with Lync 2010. I'll post the device log once I get a hold of it.

    I have no Win8 mobile device yet. I did use Lync 2010 app till CU1 with same IIS ARR reverse proxy and Lync Server 2013. It suffered reconnects and undelivered messages, but just didn't have such annoying banner)
    • Edited by i3laze_ Thursday, March 21, 2013 6:42 AM
    Thursday, March 21, 2013 6:40 AM
  • The Lync 2010 and Lync 2013 mobile clients are pretty different architecturally.

     

    I extracted out what I think might be a relevant piece of i3laze_'s log in the other thread.  I'd be curious to see a second for comparison.

    Thursday, March 21, 2013 7:04 AM
  • I had increased the ProxyPass timeout earlier today and I haven't seen the "configuration has changed" message for the past 10 hours since I changed it. I'll update this thread if it shows up again.
    • Marked as answer by dkhouri Tuesday, April 02, 2013 6:49 AM
    Thursday, March 21, 2013 2:57 PM
  • Apache causes problems with Lync 2013 mobile.  There is some header modification taking place.  More detail here:

    http://www.confusedamused.com/notebook/lync-2013-mobile-clients-and-apache-reverse-proxy/


    Chad McGreanor Lync Server 2010 MCM https://cmcgreanor.wordpress.net

    • Proposed as answer by Kent-Huang Tuesday, April 02, 2013 6:48 AM
    • Unproposed as answer by dkhouri Tuesday, April 02, 2013 6:49 AM
    Saturday, March 23, 2013 4:03 AM
  • It has been two weeks since I increased the ProxyPass timeout in the Apache configuration and I still haven't seen any "configuration has changed" messages.
    Tuesday, April 02, 2013 6:50 AM
  • It has been two weeks since I increased the ProxyPass timeout in the Apache configuration and I still haven't seen any "configuration has changed" messages.

    Hi, I've the same issue.
    Could you please provide the ProxyPass configuration of your Apache used to solve the problem?

    Thank you.
    Regards
    Luca

    Monday, April 15, 2013 3:57 PM

  • Could you please provide the ProxyPass configuration of your Apache used to solve the problem?

    Here is my ProxyPass configuration:

    ProxyRequests Off
    <Proxy *>
        Order deny,allow
        Allow from all
    </Proxy>

    ProxyReceiveBufferSize 4096
    ProxyPass / https://lync.domain.com:4443/ retry=1 acquire=3000 timeout=600 keepalive=On
    ProxyPassReverse / https://lync.domain.com:4443/
    ProxyPreserveHost On

    I have Apache running on an Ubuntu 12.04 virtual machine and the Lync 2013 mobile client along with voice/video/IM functionality have been working fine on iOS and Android. I don't have a Windows Mobile device to test with.

    If you are running Apache on Windows, you need to replace DefaultType text/plain with DefaultType None in httpd.conf.

    Tuesday, April 16, 2013 4:41 AM
  • Ok, thank you.

    Tuesday, April 16, 2013 9:22 AM

  • Could you please provide the ProxyPass configuration of your Apache used to solve the problem?

    Here is my ProxyPass configuration:

    ProxyRequests Off
    <Proxy *>
        Order deny,allow
        Allow from all
    </Proxy>

    ProxyReceiveBufferSize 4096
    ProxyPass / https://lync.domain.com:4443/ retry=1 acquire=3000 timeout=600 keepalive=On
    ProxyPassReverse / https://lync.domain.com:4443/
    ProxyPreserveHost On

    I have Apache running on an Ubuntu 12.04 virtual machine and the Lync 2013 mobile client along with voice/video/IM functionality have been working fine on iOS and Android. I don't have a Windows Mobile device to test with.

    If you are running Apache on Windows, you need to replace DefaultType text/plain with DefaultType None in httpd.conf.


    Would seem the DefaultType on Centos also needs changing to None from text/plain in order to fix this issue
    Thursday, April 18, 2013 11:29 AM
  • I am also getting this error on our iPhone's with Lync 2013 Client. We are using TMG as our reverse proxy. I havent seen this before recently.
    Tuesday, August 13, 2013 7:30 PM
  • I get this same error on our iPhone's with Lync 2013 Client. We are using IIS ARR reverse proxy.

    I changed the timeout on the server farms, from default to 200 but getting the same error.

    I changed the timeout to 600, and I havent gotten the error all since

    Monday, September 30, 2013 7:24 AM
  • changing timeout to 600 worked for us
    • Edited by GreatSamps Monday, November 25, 2013 11:54 AM
    Monday, November 25, 2013 11:54 AM
  • Hi

    About IIS ARR , which server farm, the External web services or lyncdiscover ?

    thanks

    Thursday, December 19, 2013 3:12 PM
  • I made the changes per your configuration and the problem is resolved, no more error messages.

    ProxyPass / https://lync.domain.com:4443/ retry=1 acquire=3000 timeout=600 keepalive=On

    Thanks...

    Thursday, July 24, 2014 3:16 PM