Re: strange connection problems

From: Don Scott (anonymous_at_discussions.microsoft.com)
Date: 05/13/04 

Date: Thu, 13 May 2004 04:46:07 -0700

I have a client with a similar problem. Outgoing TCP connections are lost on the WAN NIC, but incoming VPN still works. Re-starting the SBS server corrects the problem. Other symptoms are, pinging external IP addresses cause a Destination Host Unreachable message and incoming TCP connections fail on ports that are allowed. I suspect that the Server needs more disk space on the system drive as I have caught a few errors with Exchange and Web Proxy that point to lack of memory. I suspect that when a ISA rule is broken (i.e. port scan detected) ISA somehow pulls down the curtain and all connections are lost except for incoming VPN using PPTP.