I just got this from Unigraphics support. Is there a firewall in Avast that can be adjusted?
"Hello Keith --
Siemens PLM Software doesn't recommend specific anti-virus programs, however most of your issues with FLEXlm will be with the associated FIREWALL application that comes with most anti-virus programs and not with the anti-virus program itself.
Whichever solution you choose, make sure that you can configure the firewall to allow EXCEPTIONS for the processes that manage license check-in and check-out,
lmgrd.exe
uglmd.exe
Here at Siemens PLM Software we change anti-virus solutions from time to time.
Currently, we are using OfficeScan Client from TrendMicro. This is not an endorcement for this product, most similar products do the exact same thing, just a point of information."