Lync Web App will not load and does not error out

Hi,

Recently I've been receiving invites to Lync 15 meetings. I am able to join the meetings and things work fine until somebody shares their desktop or a presentation. Then I get a message saying Windows firewall has blocked an app and asks if I want to allow the Lync Web App to run. I click OK and it appears to begin loading. The app doesn't load, I can still hear audio on the meeting but all the rest of the Lync app freezes except for the spinning circle wheel telling me it is loading.

When I look in Task Manager, I can see the Lync Web App running with a steady stream of I/O. But the entire Lync meeting will not render. If I kill the Lync Web App from Task Manager, then the Lync meeting immediately works.

System: Win 7 pro 64, IE 9, AMD Athalon dual core chip, 4 GB RAM, tons of disk space, DSL 700K connection

Any ideas?

Thanks,

JAS.

August 10th, 2012 7:11pm

turn off your software firewall(s) completely.

if it works then, you have some firewall issue.

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August 10th, 2012 7:32pm

Hi JAS,

Is there any update after turnning off firewall?

August 13th, 2012 11:46am

Hi There,

Thanks a lot for reporting this issue. And I am sorry that you are hitting this issue while attending Lync meetings. Following details will help us diagnose it further -

1) Do you have Lync 2010 or Lync 2013 client installed on the machine?

2) Do you get this issue again and again when you join the meeting or it was one-off?

3) When you killed "Lync Web App" from task manager, was audio flowing through even after that? Were you still attending the meeting from the browser?

4) How much time did you wait when UI was showing "Loading" until you killed the Lync Web App from task manager?

Thanks.

ManuMSFT

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August 14th, 2012 12:49pm

the client must be in English regional settings internet explorer
August 31st, 2012 9:37am

Hi Guys

im having the similar issue where if I have a meeting with a person that they on a computer joined to the domain, sharring screen doesn't work, it will just say loading....

whiteboard works though...

I have turn off the firewall on the computer, no joy

run ie under admin no joy

tried to run the meeting on google chrome also no joy..any idea guys?

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February 6th, 2014 5:39am

I'm also getting the same symptoms while connecting to a Microsoft training class.  I've also turned off Windows Firewall.  It was working just fine yesterday.  Today, however, I can hear audio and never see the host's video presentation.  I have tried from 2 different computers and different browsers.  Other people on the corporate network are working fine, but myself and another colleague who are located in Austin are having the issue.  The issue also occurs when VPN'ed to corp network and the issue does not occur when connecting to the Lync meeting from the internet.
May 21st, 2014 7:12pm

We fixed this exact issue by setting back the appsharing max bitrate with this command:

set-CsConferencingPolicy -appsharingbitratekb 50000

after login of the presenter, and log back in, the lync 2013 web app client where able to see desktop and apps sharing.

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February 3rd, 2015 4:53pm

We fixed this exact issue by setting back the appsharing max bitrate with this command:

set-CsConferencingPolicy -appsharingbitratekb 50000

after login of the presenter, and log back in, the lync 2013 web app client where able to see desktop and apps sharing.

February 4th, 2015 12:49am

We fixed this exact issue by setting back the appsharing max bitrate with this command:

set-CsConferencingPolicy -appsharingbitratekb 50000

after login of the presenter, and log back in, the lync 2013 web app client where able to see desktop and apps sharing.

Free Windows Admin Tool Kit Click here and download it now
February 4th, 2015 12:49am

We fixed this exact issue by setting back the appsharing max bitrate with this command:

set-CsConferencingPolicy -appsharingbitratekb 50000

after login of the presenter, and log back in, the lync 2013 web app client where able to see desktop and apps sharing.

February 4th, 2015 12:49am

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