Network help...again

[nilodor]

So it appears that I am a complete fool and I again humbly come to this forum to ask for assistance with a network problem.

Our network setup is as follows:
We have a cable modem that goes into our linksys router
From the router we have computer A, B and Laptop C hardwired into it and Laptop D wirelessly connected.

Today our antivirus program on cpu B (symantic Norton antivirus) expired and part of our subscription to our internet provider provides a free virus/security program. To install the new program I had to unistall the existing software (norton) and install the new one. After the reboot (both norton and the new virus program needed one so I told Norton to wait on the reboot, installed the new program then rebooted just once) I get hit with a limited/no connectivity message on cpu B. I check the error and it can't get an ISP.

The other 3 computers are all working fine so I go on the internet and check to see what could be going on. Basically I've tried, switching the ethernet cable to a different port, unplugging the router and replugging it in, using another ethernet cable to connect to cpu B, installing a patch from microsoft to do with some glitch in SP2 and rebooting the computer.

So to summarize cpu's A, C and D all have the same connectivity as before, they can talk to each other, use the net (and cpu D has the virus software from the isp installed on it). However cpu B is basically off the grid, I can't talk to it from the other computers, it can't access the net. I have tried many things to no avail any help you can give would be greatly appreciated.

[weegeebored]

From your post it sounded like you uninstalled Norton and then installed the new free AV program on CPU B, but later in the post you say it's on CPU D. Which is it?

Anyway, go to the command prompt on CPU B and run ipconfig /all. If the IP address and subnet mask are all zeroes then you have a duplicate IP address problem. If it's 169.254.x.x then you are not receiving a proper private address that puts CPU B on the same network as the other computers and the router (which prevents Internet access).

Also try to ping the IP address that you see when you run ipconfig (pinging CPU B from itself).

Also, what O/S? XP?

[nilodor]

Originally Posted by weegeebored

From your post it sounded like you uninstalled Norton and then installed the new free AV program on CPU B, but later in the post you say it's on CPU D. Which is it?

The av program I just installed on cpu B (which is the computer with the problem). That same program has also been installed on cpu D with no issues. Sorry I really didn't make it clear that the program has been installed on two computers.

Originally Posted by weegeebored

Anyway, go to the command prompt on CPU B and run ipconfig /all. If the IP address and subnet mask are all zeroes then you have a duplicate IP address problem. If it's 169.254.x.x then you are not receiving a proper private address that puts CPU B on the same network as the other computers and the router (which prevents Internet access).

When I do this I get the 0.0.0.0 for the ip and the subnet. So how would one go about rectifying this problem?

Originally Posted by weegeebored

Also, what O/S? XP?

XP

[nilodor]

I tried ipconfig /flushdns then /release and finally /renew but to no avail I got a message saying: a error occured while renewing interface local area connection : WSAStartup cannot function at this time because the underlying system it uses is unavailable at this time.

[DaddyTorgo]

did you google this WSAStartup to see wtf it does?

[weegeebored]

nilodor,

It sounds like a WinSock problem. Try this at the command prompt: netsh winsock reset

If that doesn't work, Google a program called WinSock Fix and run that.

WGB

[nilodor]

Originally Posted by weegeebored

nilodor,

It sounds like a WinSock problem. Try this at the command prompt: netsh winsock reset


WGB

weegeebored,

That did the trick. Thanks alot! I appreciate your help.

[weegeebored]

Glad to be able to help. The Geek Squad price for that fix is $149.95.