Lync Edge Servers Default Gateway - HELP

You should be able to do it by clicking on Network>Routes in the GUI. However, in our testing, we actually use a separate BIG-IP that functions as a router and we use that BIG-IPs self-IP addresses as the default routes on the Edge servers and clients (basically, we don't use the Lync BIG-IP self-IP as the gateway).

 

 

So if you had your Edge servers' default GW pointed at your internet router before, and the internet clients were able to route to the Edge the same way, you shouldn't have had an issue. Have you used the Lync Logging Tool? It might be helpful to set that up on your Edge servers and run it while the disconnects are happening. You can also contact F5 support and they can take packet captures on the external LTM to see if there's any unexpected behavior going on there.