Windows 2000 Multihomed Servers Lose Static IP Configurations Randomly

  • Thread starter Thread starter Aaron Richey
  • Start date Start date
A

Aaron Richey

We have 3 Windows 2000 Multihomed Servers with all the
latest patches, they are very different in their
configurations but for some reason all three randomly
will drop the settings for one of the network adapters
(sometimes the same one sometimes not) and there is no
specific amount of time until they do this, sometimes it
is every 5 minutes, sometimes every day.

This just started happening, after it happens one of the
NICS then has a 169.x.x.x IP address and a release and
renew on the DHCP based one will not work. We have to
manually reset the settings and then reboot!

This is also happening on about 6 of my customer's
servers and all started about 2 weeks ago.

BUILDING 2, NETWORK 2

SERVER B
NIC 1 - Static 10.0.0.2
NIC 2 - 9 Static External IP Addresses

SERVER C
NIC 1 - Static 10.0.0.3
NIC 2 - Static External IP Address

BUILDING 1, NETWORK 1

SERVER A
NIC 1 - Static 10.0.0.2
NIC 2 - DHCP from Cable Modem

Any Ideas?
 
This is usually caused by a NIC driver. Make sure you have the latest NIC drivers for the NICs you are using. Do all 3 servers
use the same brand of NIC? In some cases, removing and re-installing TCP/IP will fix this. For the details on this step please
refer to 285034 How to Remove and Reinstall TCP/IP for Windows 2000
http://support.microsoft.com/?id=285034

Thank you,
Mike Johnston
Microsoft Network Support
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One other thing, try this:

Start Regedit and export the following registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network
- Remove the "Config" binary value from the same registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Network

- Close Regedit
- Restart your server to test
- This should resolve the issue.


Thank you,
Mike Johnston
Microsoft Network Support
--

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terms specified at
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from which they originated.
 
Hi Aaron,

I really don't understand why an external nic would nee 9 IP-addresses.
Also, an external nic getting an IP from the Cable-modem??? Do yourself a
favour, and get a router between that nic and the Cable-modem.

Does any of those server use RRAS? In that case, make sure you've done the
regedits in 292822.

Marina
 
It's a web server which is why it has multiple IP
addresses, regardless I have 8 other servers that only
have single IP addresses doing the EXACT same thing.

None of them use RRAS
 
I deleted the key, rebooted, and am still getting the
same results. :(

I've tried 3COM Network Cards, Intel NICS, Linksys with
the same results every time.

I tried the below on 3 of the servers that are having
this issue with no luck
-----Original Message-----
One other thing, try this:

Start Regedit and export the following registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Networ
k
- Remove the "Config" binary value from the same registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Networ
k

- Close Regedit
- Restart your server to test
- This should resolve the issue.


Thank you,
Mike Johnston
Microsoft Network Support
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confers no rights. Use of included script samples are
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terms specified at
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