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IP Address Conflict.

By ksvijayb ·
Server & Network is Win NT. Dynamically Allocated.
User desktop Win 95.
Hi,
I am maintaining an office network of about 2 servers (1 NT & 1 HPUX) with 60 nodes. O/s of the enduser desktops varies from Win 95 to Win 2K.

One particular user's desktop(WIN 95) alone gives me "The system has detected a conflict for IP address xxx.xx.xx.xxx with the system having the hardware address xx:xx:xx:xx:xx:xx. The interface has been disabled"
The funny thing is that the hardware address said to be in conflict is NOT PRESENT IN MY NETWORK. I have deleted the NIC drivers, re-installed almost everything. Still no use. Currently I have given an manual IP ADDRESS and made the user work.
Any inputs to solve this issue is most appreciated.
Thanks in advance,
K.S.Vijayabaskar

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IP Address Conflict.

by joshg In reply to IP Address Conflict.

You said the IP's are dynamically allocated. Delete the reservation for the IP from DHCP and let the machine get a new IP.

That IP may have been used by a workstation at one time and is still in the DHCP pool.

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IP Address Conflict.

by ksvijayb In reply to IP Address Conflict.

I have done this a couple of time and is of no use.

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IP Address Conflict.

by HuckleberryHound In reply to IP Address Conflict.

Have you tried running WINIPCFG from the Windows 95 computer and doing a Release All then Renew All to see if it gets a different address?

Also, I recommend that you make sure that another machine is not using the same address. Write down the IPaddress and then power off this Windows 95 computer and then go to any another computer and PING the address.
If you get a REPLY then the address is truly in use by another computer. If you get REQUEST TIMED OUT four times then you know that no other machines are using that address.

If the Win 95 computer keeps getting the same address then run WINIPCFG and do a RELEASE ALL. Next, go to the DHCP server and delete the lease if it is still there then create a reservation for that address (just make up a MAC address). Go back to the Win 95 computer and click on RENEW ALL. This should force the machine to get a different address.

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IP Address Conflict.

by ksvijayb In reply to IP Address Conflict.

Poster rated this answer

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IP Address Conflict.

by donbrafford In reply to IP Address Conflict.

Hi,

I am seen this a few times. This may sound wierd but it works. If in fact you know that machine that is causing this. Physically take out the network card reboot the system and then shut down and install the card. You problem should be fixed.

Hope this fix's yours as it did mine.

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IP Address Conflict.

by ksvijayb In reply to IP Address Conflict.

Sorry, this did not help me, I have done this atleast 3 times.

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IP Address Conflict.

by donbrafford In reply to IP Address Conflict.

Hi,

I am seen this a few times. This may sound wierd but it works. If in fact you know that machine that is causing this. Physically take out the network card reboot the system and then shut down and install the card. You problem should be fixed.

Hope this fix's yours as it did mine.

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IP Address Conflict.

by ksvijayb In reply to IP Address Conflict.

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IP Address Conflict.

by nixarie In reply to IP Address Conflict.

I'm not sure if winipconfig has these options (ipconfig does), but try winipconfig /flushdns followed by winipconfig /registerdns.

Thhis should purge your DNS resolver cache and then refresh all DHCP leases and re-register DNS names.

Good Luck.
Marius

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IP Address Conflict.

by ksvijayb In reply to IP Address Conflict.

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