Hi All, I have very strange problem with ISA. I have published webserver behind ISA and I see some anonymous connection initiated in my current sessions in server from a valid IP. Now, when that anonymous connection exists then my Internal clients(Secure Nat and Web Proxy) are unable to access the Internet and get host not found error message. The moment I manually disconnect this valid user from current session my internal clients are able to access the Internet. Later when I check the ISA logs I get some c:\winnt\system32 get 12202 kind of messages from that valid IP. I understand 12202 message is ISA is disallowing him. Please advice as what can be done for the valid user to block to establish a connection to my server as my internal clients will not be able to access the Internet. Thanks in advance. Vinay.