Configured "SessionReliabilityTTL=900" in StoreFront, the expected behavior ICA connection should be disconnected after 15 minutes, but actually, the connection disconnected after 5 minutes.
A 3rd party network application caused affect session reliability behavior. CWA logs shows "Close socket because peer close" which means the socket was closed.
CWA will check the return value from socket API, include 10050/10057/10052/10053/10058/10060/10054, while has network issues, the 3rd party application should return these values to CWA correctly. 3rd party vendor approved to fix on their side.
CWA for Mac - Session reliability does not work in CWA for Mac
https://learn.microsoft.com/en-us/windows/win32/winsock/windows-sockets-error-codes-2