I am running ISA 2006 which is my gate way for my Exchange Server & Internet Access.
In the past few days I have noted that ISA seems to be disconnection the TCP Connection from my DNS Server (192.168.1.11) & thus causing Email to stop going out & in, also the Internet stops. Please see attached the error.
I only come to realize this problem takes pace when my clients start to complain that Email have not been received. I am forced to restart my ISA Server & I only hope the connection resumes so Emails and Internet Access can start, but after sometime the problem occurs again.
Please advise the solution to the problem.