Crashing as when starting video call

New Contributor

As soon as I start sending video, Skype for business will crash. In eventlog, the following processes are crashing at the same time





Faulting application name: lync.exe, version: 16.0.4600.1000, time stamp: 0x59b86d29
Faulting module name: RtmCodecs.dll, version: 6.0.8953.273, time stamp: 0x598a16b1
Exception code: 0xc0000005
Fault offset: 0x00000000001762c1
Faulting process id: 0x2edc
Faulting application start time: 0x01d35ee1fb89b9e4
Faulting application path: C:\Program Files\Microsoft Office\Office16\lync.exe
Faulting module path: C:\Program Files\Microsoft Office\Office16\RtmCodecs.dll
Report Id: 5ab887c8-e26e-46cd-8581-2ebc91327920


I've tried two different machines, two different cameras (logitech group or conferencecam connect), updated all drivers, SfB patched as much as possible


Windows 10 x64 1703

Office 2016 

SfB 2016 MSO 16.0.4549.1000 64-bit


Receiving video calls is fine, but as soon as I start sending video, it crashes

5 Replies



I found out that sometimes crashes are solved with this update:





Thanks, I'll give it a try


After some testing, it seems SfB to SfB calls are working, as are SfB to Consumer skype, however SfB to a virtual meeting room (eg that connects SfB to Cisco endpoints) will crash once a 2nd party connects

I am able to reproduce this with a clean install of Windows 10x64 1709. No 3rd party antivirus install, just built-in Windows AV.

With a Quadro M or K class, it crashes. A regular quadro 4000, no problems.

same issue here. reinstallation did not fix it