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Can't ping loopback

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7 replies

by fongch

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I am using Win2k Pro with an assigned IP address 192.168.1.2. I am in a workgroup with another PC with IP 192.168.1.1 running Win98SR2
I can ping 1.1 but not myself on 1.2
Subnet mask is 255.255.255.0 and gateway is empty. Pls advise why i can't ping even loopback. The ethernet port is working as i am connecting it to my ADSL modem.
Thanks.

7 replies

by jeff adams

Has loopback host name is typically called 'localhost' by default and should be defined in your local hosts file. In C:\WinNT\system32\drivers\etc\hosts, you should have a line very similar to:

127.0.0.1 localhost

-Jeff

by fongch

Hi, the problem is that the localhost is in the host file but i can't ping localhost or 127.0.0.1
Could it be any settings in my registry or nic??

by jeff adams

If localhost and 127.0.0.1 are defined in your hosts file and you can not ping either one, I would suggest removing TCP/IP from the PC, rebooting, and reinstalling TCP/IP, and reapplying any service packs/hotfixes associated with TCP/IP.

-Jeff

by alpha-male

Almost invariably this points to something corrupted in the TCP/IP stack. If you have tried:

ping localhost
ping 127.0.0.1

and get errors, you need to reinstall TCP/IP.

Pinging the local loopback address doesn't run a signal through the NIC; it just checks the local computer. If this test doesn't succeed, you can assume something is wrong with the network drivers and or TCP/IP stack that Windows loaded.

Hope this helps....good luck!

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