Hello,
We have TMG 2010 SP2 RU2 running on WS 2k8 Sp1. Firewall policies and proxy is working, but the problem is it occationally hangs and needs the TMG services for restart daily. It is configured as Edge firewall with 2 legs.
I checked the ff. configurations:
1. Internal NIC has DNS and External NIC do not. (uses internal DNS)
2. Internal NIC has Default GW and External NIC do not.
Error/s encountered:
1. Event ID 31524 - An error occured while trying to communicate with the Microsoft Reputation Service server. If this Forefront TMG server is chained to an upstream server, verify that the WinHTTP proxy is set to localhost. If this issue persists, check that
Internet connectivity is available
>> I configured WinHTTP to localhost and Installed MRS certificate to TMGSRV accessing MRS websites. followed reference site (http://blogs.isaserver.org/shinder/2008/06/12/poor-isa-firewall-performance-check-dns-first)
>* Still error persists and TMGSVR hangs and requires manual restart
Please help.
Thanks