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OWA & Network Card issues.

Posted on 2009-03-30
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Last Modified: 2013-11-09
I have a weird issue with my Exchange server. The network connection for Outlook Web Access seems to lock up at times. The NIC reports that everything is fine, no logs in event viewer, just noone can connect to OWA until I log on the server and do a Repair on the NIC. I tried switching the NIC with another that is in the same server and it still does it with the other NIC. The 2 NICs are from different manufacturers so I am pretty sure that it is not a driver issue. The NIC that had the problem to start is still working fine since the switch.

Sometimes the NIC is good for a few days other times it lasts a few hours. There are no issues in Device Manager and no Event Viewer entries.

Server Info:
Dell PowerEdge 2950
Windows Server 2003 Enterprise with SP1
4gb Ram
original NIC is a Broadcom BCM5708C NetXtreme II GigE (NDIS VBD Client) built into the motherboard
Replacement NIC is Linksys EG1032 v3 Instant Gigabit Desktop Network Adapter


Hopefully someone can offer some solutions.



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Question by:polarishfc
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8 Comments
 
LVL 23

Expert Comment

by:debuggerau
ID: 24024876
are you using a static IP address?

Are there any conflicts in the event viewer?
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Author Comment

by:polarishfc
ID: 24024889
Yes all cards have static IP addresses.

Nothing comes up in event viewer.

I would not know that it even happens if someone does not try to get into OWA.
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LVL 23

Expert Comment

by:debuggerau
ID: 24025072
So, next time, just disable and enable the appropriate adapter to see if that is the key.

Might actually be a hardware fault..
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LVL 65

Expert Comment

by:Mestha
ID: 24038555
Are the drivers up to date? If they are not dated 2008 then they need updating.

Simon.
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Author Comment

by:polarishfc
ID: 24041826
Actually the drivers are as up to date as they can be, which is from 2004, the card is a Linksys EG1032 v3 Instant Gigabit Desktop Network Adapter and the latest drivers straight from Linksys are 12/15/2004 Ver.5.620.1202.2004

I have changed the cables and the NIC so I am pretty sure that neither is the problem.


I have also set the NIC to 1000 Mbit Full duplex instead of Auto Negotiate, and I have turned of the setting that allows windows to turn off power to the card if its idle. Neither of these fixed the problem though.
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LVL 65

Expert Comment

by:Mestha
ID: 24043273
Go back to the Broadcom card then, and use their 2008 drivers.

Simon.
0
 
LVL 23

Expert Comment

by:debuggerau
ID: 24257591
could it be ARP poisoning, do you have the firewall intact?

Also, try 'netsh winsock reset', see how that goes..
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Accepted Solution

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polarishfc earned 0 total points
ID: 24692103
We had the motherboard replaced by Dell, It seems to not be happening any more. Hopefully it will stay that way.
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