i have a problem in my network that ISA server is intalled in interactive mode, on DEll PE4600 Server, when i start my seerver it works just fine but after an hour or so,,when client access increases ,, the client do not get any browsing for a few minutes, and when ping the isa server machine, the request is tiemd out message come, after few minutes it again respond and after some interval again timed out, any one could help me out, we have more that 200 users.