Router Option not applying to 1 PC

[nevets2001uk]

We have Windows 2003 DHCP installed and running on two servers with a 50/50 scope split.

All of our clients (approx 100) are able to retrieve an IP and all except one apply the router scope option which sets the default gateway to our router. For some reason this one client keeps loosing this setting.

If I release and then renew the gateway appears and Internet works but after a few days (approx half of the lease) they loose Internet and when I check, the gateway is missing.

So it seems to be related to the IP renewal but is fine if I do it manually from the command prompt.

Any thoughts?

Steve G (MCSE / MCSA:Messaging)

 

[lhuegele]

It could be the TCP/IP protocol being messed up, but more likely it's the NIC. I would put a new NIC in it and see if that resolves the issue.

Good luck,

 

[jyorgey]

When the client looses the geteway the next time, before you do a release and renew, type in ipconfig /all. Check that the DHCP server is the correct one and not a rouge server handing out addresses.

 

[GlenJohnson]

Just for jollies, what happens when you take the problem pc, and when the problem occurs, try and ping the servers. If that has a problem, do a traceroute and see where the issue is. I'm leaning towards lhuegele's thoughts of it being a nic issue, but I always like doing a bit of detective work. You didn't mention the operating system of the client, but if it's w2k or later, you could check and see if it's sending out bad packets, and that would verify a bad nic. Just a thought.

Glen A. Johnson
Johnson Computer Consulting
MCP

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