Enable full logging in Lync web app client while joining Lync meeting in Browser

Enable full logging in Lync web app client while joining Lync meeting

If you want to troubleshoot the Lync meeting which is opened in browser, then full logging should be enabled on Lync web app to collect detailed logs.

In order to get more detailed logs from LWA, you just need to append the following to the meeting join URL:

https://meet.lync.com/first.last/YL6HFCPK?sl=1&log=full

Adding &log=full to the end of the meeting join URL will cause the Lync Web App to log additional information.  The logs that LWA creates are stored here:

C:\Users\<username>\AppData\Local\Microsoft\LWAPlugin\Tracing

Specifically, the file you are looking for is:

LWAJSPersistentx.log

Where x is a number, usually 0 or 1.  Opening up the file, you will see a whole bunch of information including information about Web Ticket, MRAS, and ICE candidates among other information.