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IIS stops responding after 3 days

I have Windows 2003 Server and all of a sudden the IIS stops working after 3 days. I don't get an error in the event viewer. I am able to restart the iis and realted services without an error also, but it still doesn't work. The only way to get it runing again is to restart the whole server, wich is really bad. I didn'T do any changes on my server and it worked fine for about 6 month. Thanks for any help!
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mdietl
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mdietl
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1 Solution
 
thefritterfatboyCommented:
You say "stops working" - what symptoms does this consist of? Do web requests just "hang"? What anti-virus is running on the server?
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mdietlAuthor Commented:
Well the thing is that the error 401 Website not found is comming up. It is not possible to view any site of that webserver. I have installed the Symantec Antivirus 10 Enterprise Version which is already running since 6 month on that server. Didn't have taht problem at the beginning.
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dnojcdCommented:
If  you have to restart the server eveytime to make the website up then,i think you have to monitor the memory and CPU of the server. What kind of applications are you running on the server?asp or asp.net .Have  you noticed w3wp.exe taking high memory and cpu time?If  your not using session state in your aopplications you can try recyling the application pools based on the CPU time and memory usage
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mdietlAuthor Commented:
I am using asp.net and the only application running on the webserver is the exchange webaccess service. I also found out that the w3wp.exe is using around 40.000K of memory wich I mean is not that much. However, I don't understand why I can't get it to work when restarting the IIS service.
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dnojcdCommented:
If you are not using any application apart from the OWA i think we can easily rule out the chances of memory leaking applications. So next you  have to check for the malvare or any virus in the system? Are you using any antivurs software? if so are they updated regularly.
I  think there will be some error logs if the web server stops
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mdietlAuthor Commented:
I am using the Symantec Antivirus Enterprise Edt. V10 and yes it is updated and running, So far I have never found a virus on that server yet, but maybe is the Symantec not the best of a virus protection. I do not see any errors in the eventviewer. Are there other places where I can find an error log?
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thefritterfatboyCommented:
You said 401?

If the error is a 401 error the problem is not IIS "hanging".

401 Unauthorized

The request requires user authentication. The response MUST include a WWW-Authenticate header field (section 14.47) containing a challenge applicable to the requested resource. The client MAY repeat the request with a suitable Authorization header field (section 14.8). If the request already included Authorization credentials, then the 401 response indicates that authorization has been refused for those credentials. If the 401 response contains the same challenge as the prior response, and the user agent has already attempted authentication at least once, then the user SHOULD be presented the entity that was given in the response, since that entity might include relevant diagnostic information. HTTP access authentication is explained in "HTTP Authentication: Basic and Digest Access Authentication".

Please check the security tab of your IIS to ensure that anonymous access is granted.
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thefritterfatboyCommented:
If the server uses integrated authentication then it could be a problem with the domain (if it is part of one) and this should be where your troubleshooting occurs.
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mdietlAuthor Commented:
I am trying to find that out, but maybe you are right and it is related to a problem wtih the domain.
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