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Windows 2K Pro DNS Problems

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11 replies

by megtek

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Hey there...

I have a Windows 2000 Pro machine that can ping by address but not by name. I re-installed Windows, SP2, and TCP/IP. Has to be OS related because it is a dual boot, and Win98 works fine. I am thinking there is a reg. setting that is screwed up. Anyone have any thoughts?

Thanks.

11 replies

by ann777

If you can ping by ip address, but not by name... then your DNS settings are not correct.

by megtek

I checked the DNS settings. All other stations on our LAN have the same DNS addresses. When this PC is taken home and used with Optimum on-line with DHCP...it still does not work.

by timwalsh

The DNS settings on the machine may be correct. However, the DNS server may not be installed correctly/completely.

IP address to host name resolution uses a DNS forward lookup zone. Host name to IP address resolution uses a DNS reverse lookup zone or a LMHOSTS file. If a reverse lookup zone was not created (or the necessary host record not added to the zone), and no LMHOSTS file exists, than you will not be able to resolve a host name to an IP address.

by joseph moore

Something else to try is the "DNS suffix for this connection." I had a user who had a DNS suffix for a foreign office in his DNS settings when he came back from a trip. He plugged into our LAN, got an IP address from the network DHCP server, but couldn't get DNS resolution. His DNS settings were trying to append the other office DNS suffix to his connection, and it was really screwing things up. Conflicts galore!
So, on the Win2kPro box, open the IP properties. Click the Advanced button. Go tothe DNS tab. Check there. If there is a conflicting DNS suffix, remove it and save changes. You might have to reboot after doing that, though.

hope this helps

by zbopz

If Your DNS settings are correct, and you reinstalled TCP/IP, you are probably right about a registry key being the problem. The Key that gets removed when you uninstall TCP/IP from your LAN connection is HKEY_Local_Machine\System\CurrentControlSet\Services\TCP.

There are three others that I know of that might cause the problem. This is kind of a shotgun solution but just might work. Disable all connections that use TCP/IP. Uninstall TCP/IP. Don't restart. Export (back-up) and then delete these keys.

HKEY_Local_Machine\System\ControlSet001\Services\TCP
HKEY_Local_Machine\System\ControlSet002\Services\TCP
HKEY_Local_Machine\System\ControlSet003\Services\TCP

Restart, reinstall and reconfigure TCP/IP.
Even though I didn't have your troubles, I tried this on my own WIN2k box and everything reinstalled and worked after. DO BACK UP FIRST though.

Good Luck

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