Hello, i have to face some crucial problem with ISA Server, actually i m using Cable net and the through ISA Server, i can use web browsing,MSN Massenger yahoo massanger, but i can't use the Voice Chat or Web Came and SMS through Net. i m in doubt my administrator blocked my these services, but he deny and telling me i had never blocked your services, it is your system faults, (Windows Fault) but i have 4 systems how can this possible, my all system widows will crrupt. kindly tell me the solution, and pin pointedly tell me how he has blocked me from ISA Server, becouse i want to tell him, Mr.Administrator plz, set that proxy port of or other that is not properly configured. kindly give me the solution... i m waiting ur earliest reply.. thanx wasee