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IIS v6 server suddenly stops responding to requests made from outside the firewall?

Posted on 2007-08-01
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Windows 2003 Server SP2, IIS v6.  The problem is our websites suddenly stop responding to requests made from outside the firewall on one of our IIS servers.  You get a page not found msg.  You can't access the sites via ip address either. This has just started to occur.  The web, firewall, and dns servers have been running in conjuction just fine for over a year.  Rebooting the Web server is the only way to fix the problem.  Nothing had changed on any of the three until this problem started to occur. I've since patched the problem IIS server. We have one other IIS web server and an Apache web server and they continue to respond to requests made from outside the firewall,  we also have an Exchange server running with Outlook Web Access, no problems with these servers either, while the problem IIS server is misbehaving.  No problem accessing the sites on the problem server from the inside.
We've rebooted the firewall and the dns server trying to solve the problem.

The problem started last Thursday, sometimes the server will run for a few hours, and then need a reboot, sometimes it will run for a couple of days, and then need a reboot.  There are no errors in the Event logs.
The httperr.log file which I'll admit I'm not real familar with, doesn't appear to have anything that jumps out at you.
What would you look for in this file that would indicate a problem?
We're using the W3C Extended Log format for the http.log files.  
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Question by:mobot
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by:Sam Panwar
ID: 19614893
Hi,

Can you please check in the event viewer for any error message for IIS and update me so we can assist you better.
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by:mobot
ID: 19618761
I've looked in the Event logs for any errors pertaining to IIS and I don't see any.  Thanks
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by:mobot
ID: 19639465
I've got the problem solved.  I disolved the HP Nic Team, then reteamed the nics, and added the ip addresses to the Local Area Connection that's created automatically when you team the nics.
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