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DHCP Errors

By jcroynhp ·
I am running Windows NT server 4.0, SP6a, and Proxy Server 2.0. I have a cable modem which is shared thru the Proxy server. It has worked fine for abot 1 year. For the last 2 weeks or so, I get a message stating that " The NIC could not renew a lease", so I re-boot the server and every thing is fine for about an hour or so and then the message again pops up. I have moved the cable modem to a 98 workstation and had no trouble keeping my IP address. I also have tried several different NIC's in the Server, all producing the same error. And lastly, I tried uninstalling TCP/IP and re-installing it and DHCP but that has not helped either. Any ideas? PLEASE!!!!!!!!!!!

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DHCP Errors

by boikanyo.geo In reply to DHCP Errors

Revert Back to the last service pack that was running on your machine. Then load Service Pack 6c.

The is a know problem with MS Proxy 2.0 and courier modems. If you are using a courier modem, then check the Vendor's updated drivers and load them.

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DHCP Errors

by jcroynhp In reply to DHCP Errors
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DHCP Errors

by calves In reply to DHCP Errors

This is a long shot and I hope it pins your problem. You did not mentioned, but I have a hint. How many IP address are available in your scoope for the network?
Have you check DHCP for available IPs when this happens. It could be that DHCP can not allocate anymore IP, because a lack of it. If that is the case, you have to options, start using a higher class (B) a superclass (combination of IP in more then one subnets), or simply reduce the IP renew time in DHCP.
If that doesn't, try unistalling DHCP, put SP, then re-apply DHCP followed by the SP again.

Good luck!

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DHCP Errors

by jcroynhp In reply to DHCP Errors
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DHCP Errors

by guy In reply to DHCP Errors

As a work around could you give it a STATIC IP address, being a Server rather than a Workstation that would be beneficial.
Another suggestion would be to run Network Monitor on the DHCP server and see if it 'sees' the request. That could confirm CALVES suggestion that there are no more leases. Is it a very short lease? Usually they are days long so you would not expect a renewal error within an hour.
Finally search technet for Renew near Lease, maybe an article will help.

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DHCP Errors

by jcroynhp In reply to DHCP Errors
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