I am currently in the process of implementing an ISA Server 2006 for my domain environment, my test group is currently made up of 15 users and machines, and I have install ISA client on each of the machines, which works fine during the day. But when we come in the morning every morning during the test phase the ISA Client is disabled and the error is "Failed to resolve server name" I tried to connect automatically, no connection, as well as via IP, no joy. I come back online on its own, and there is no schedule set up, all rules are set default to always on.
I cannot allow the server to go live until I resolve this problem, any assistance will be appreciated.