so my issue look a little bit illogical to me, and couldn't get my head around it, configuration is pretty basic with Isa server 2006 used as a Proxy/default gateway for Entreprise clients, on the lan Side ip address is as follows : 172.16.123.0/24 on the wan side a public ip address : 41.x.x.x/27
proxy clients doesn't have any issue connecting to the internet using the Server ip address in their Browsers, but SecureNat Clients have this weird issue of Conneting only when I restart the services at first, they may stay connected for a while.. but after a random amount of time.. they simply stop working!!! and to get them back to work, I have to manually restart the services again!!!! , my guess is that it's probably something to do with certain limitations of the number of connections that ISA will allow SecureNat clients to use.. but it's just a wild guess, so any suggestions as to what to do or tweak in my server to make it work all the time without my constant intervention I'll be grateful, thank you guys