Windows Firewall failing after 9-12 hours?

Posted by routeNpingme on Server Fault See other posts from Server Fault or by routeNpingme
Published on 2011-02-05T14:50:43Z Indexed on 2011/02/05 15:27 UTC
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Filed under:

windows-server-2003

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windows-firewall

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windows-server-2003-r2

I have 2 VM servers in the exact same NIC configuration: Server 2003 R2, one NIC connected to private (hardware firewall) network in a 10.x private address space, and one NIC connected straight to public internet.

Windows Firewall is enabled for the Public Internet NIC only.

Now, what doesn't make sense - this fails generally after 9-12 hours. It's not exact, but once or twice a day, traffic will just stop on the Internet NIC. No event log entries when it happens, and restarting the Windows Firewall service as well as stopping or restarting IPSec Services (just for fun) has no effect.

Once the server is rebooted, everything is fine again for another 1/2 day.

Any suggestions?

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