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SBS 2011 Network Connectivity Issues

Posted on 2011-09-13
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Last Modified: 2012-06-27
Hi,

I have a Windows SBS 2011 Installation and the client computers seem to periodically and randomly lose connectivity to the server.

The can be working away no problems, then all of a sudden they will lose access to the server, yet they can still ping it. It happens during a lot of different things. It even happens to me when I am RDP into the server, it will just error saying cannot connect, retry's 20 times, I can still ping it. However it disconnects, I wait a minute and it starts working again.

What could be the cause?

Thanks

Mark
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Question by:mark_06
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by:Feebleminder
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Have you tested Hardware (switch, router, etc...) to make sure they are not faulty. You could be having some sort of connectivity issue between a switch and router or switch and server, causing the intermittent problem. Also run the Fix My Network Wizard (FNCW) ( if you haven't already, Good Tool) in SBS Console. This can help find other issue's unknown that might be the issue.
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by:mark_06
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I have run that. I haven't tried replacing the router and switches, however as I can still ping the server. Its weird.
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by:jsdray
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try a TRACERT rather than a ping to see if you can narrow down where the dropout is...
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mark_06 earned 0 total points
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Found the issue, someone setup another device on the network with the same IP as the server.
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by:mark_06
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Someone caused an IP conflict
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