NIC receiving after repair, going down again after few hours.

By robbsmet ·
HI All,

I received my new Dell poweredge 2950 server. The server is basic with dual Broadcom BCM5708C NetXtreme II GigE onboard.

After installing windows 2003 R2 with all updates and latest drivers from Microsoft and Dell I connected one of the onboard nic's with my lan ( with gateway and the other with the internet-WAN (92.66.203.xx/ Both network adapters have a static IP address.

Now in first instance both nic's are connected and everything looks good. only after a period of time the Internet-WAN NIC failes at sending data. Receiving doesn't seem to be a problem.
repairing the connection looks to solve it but after a few hours it will go back into only receiving mode.

Between the Internet-WAN card and internet there is only one cisco 878 router.

any suggestions?
I tryed:
- a new install, but the same problem.
- using a 3rd network card(INtel Pro/1000 PT), same problem
- switching ip with nic (LAN with other broadcom and WAN with LAN), same problem
- switching between ports on the cisco, same problem (other servers connect and stay connected using the ports of the router and using the same ip)
- updating drivers and bios, same problem

The server is now in use as domain controller and exchange server (small company).
That's why I need a relyable connection with the internet.

Hope someone has an id,

if there is need for more information, please let me know.

Kind regards,

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All Answers

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Mis-negotiation? Gateway?

by robo_dev In reply to NIC receiving after repai ...

Is the switch port set to auto and the server set to 100-full? If the two have mis-negotiated, then the port will often accumulate CRC errors, then burp. Set both devices to 100-full.

Look closely at the port statistics on the WAN port to see if errors are occuring.

when in 'failed' state, what gateway appears on the server? Windows has a feature called 'dead gateway detection' which may be part of the issue.

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by robbsmet In reply to Mis-negotiation? Gateway?

Thanks for your suggestions, I will monitor the servers WAN card and hope to find errors.. I found out that a repair on the card also does the tric, I found out that a repair does the following commands:
ARP -d * (flush the ARP table)
nbtstat -R (Flush remoteCacheNameTable)
nbtstat -RR (ReleaseRefresh)
ipconfig /flushdns (flush dns cache)
ipconfig /registerDNS

so next time i'll try these commands manually to see what is most helpfull.

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Dual NIC

by robbsmet In reply to NIC receiving after repai ...

Hi all..
So suprisingly, i was browsing the forum and found this thread:

it described precisely what my problem was.. I have ran the route -p command also and am now awaiting if it solved the problem. Keep it posted in this thread also.

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