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Multiple NICs in computer

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by rgrowcock

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I have a W2K server running with 2 NICs. One for the local network, and a second for an external network. My problem is that periodically, I can not access this machine using the external IP address that I have assigned. It is like it just forgets what it is doing.

From this machine I can ping the IP address with no problems, but not from anywhere else. This is running a webserver that I need to be able to access via the Internet and when it goes down, Major Heartaches! Any thoughts?

10 replies

by curacao_dejavu

Seems unlikely it's w2k.
We are having the same issue, but we think it's the ISP.
make sure that's it's not the internet and the router that are going down.
Use a program like pingplotter to check the stats on traffic for that box.
(our stats are revealing it's more the isp than our box)

If you find out that the culprit the w2k, pls email me.

Leopold

Leopold

by rgrowcock

It was that I had 2 gateways set, I removed the default on the local network and things have been working fine. Hope this will help you.

by xfeard

Hi! You can try to swap the NIC. Configure the intranet card for internet and the internet for the intranet. With this you check if the problem is the card (if the intranet go down) or the connection.

Good luck!!

by rgrowcock

Tried that but same problems. Have tried several different NICs too. Thanks for the thoughts. Roger

by pagey

Make sure you have a default gateway specified only for the external NIC, the internal NIC shouldn't need one as everything it should be trying to contact should be on the same subnet. I have experienced similar inconsistent problems with machines then discovered that have two default gateways.

by rgrowcock

The last poster, User_Deleted, suggested using only a default gateway for the external network, so I'm trying that. If it works, I'll post a response, but I won't know who to thank. Roger

by adeal

If they're on the same subnet, make sure you disable NETBIOS in WINS on one of them. Kinda stupid that it would be under then WINS tab when W2K Server apparently doesn't use it with AD.

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