Microsoft Lync Response Groups.

what version of lync are you using

can list out the settings you have done both on the lync console and the response group web console.

Also have you checked the lync server logs for any errors - look for Match Making service and response group....they tend to stand out easily

finally have you done client logging and server logging to see what happens to the call i.e. does it make it to a client.

If you run a trace on the FE server and one of the clients you should see where the call falls over

Hi,

Thanks for your reply.  Currently this is now working.   The Response Server was restarted.  Where are the lync server logs you mentioned?  What did you mean by a trace - wireshark?

We have found that a Microsoft Lync updates may resolve the issue :  https://support.microsoft.com/en-us/kb/3018165.  We will run the updates on our servers and I will let you know if this resolves the issue.  As it is currently working there is not a lot more we can do.

The event logs are under "Application logs and Services logs"
then "lync Server"

With regards to the trace i am talking about lync debugging tools
below is a good guide to using it
http://blog.schertz.name/2011/06/using-the-lync-logging-tool/
Logs.PNG

Hi.  Sorry for not replying sooner.    Having installed the update mentioned in my update above the Response Group have been stable and have not fall over since.  It worth noting that this fixed the issue.  Thanks for all your help.