Problem with TCPIP in Windows XP

[surd615]

I have a problem with one of my PCs at home. I'm running Windows XP professional on it. I can get to the internet through my SMC Barricade router without any problem.

I can also use a printer that is installed on the printer port of the router, so it looks like TCPIP is installed and functioning, but I cannot ping the local machine - I get the error 'Request timed out'. I can ping the router though I cannot ping the two other PCs on the network and can't see them in 'My Network Places'.

The interesting thing is that this is a pre-built PC and came with XP preinstalled - the first time I've ever bought a brand-name PC!

I have checked the configuration to make sure that it is on the same workgroup and subnet as the other PCs though that should not make a difference as far as the ability to ping the local machine is concerned.

 

[HeSaidWhat]

Canyou ping it from the other computers?

 

[surd615]

No I cannot

 

[netsysadmin]

Is the XP built in firewall turned on...or any firewall software?..try turning it off?

 

[TomBilliodeaux]

You may also need to go into the router setup and enter the range of addresses to allow.
This will allow access around the router's firewall for your workgroup (192.168.2.1 - 200.)

 

[surd615]

The XP firewall is turned off, but I have Norton Internet Security on this PC. If I disable NIS, I can ping the local machine, but not the others. However, why would NIS not allow you to ping the local machine?

As far as allowing addresses in the router, I never had to do that before for the other 2 PCs. Besides, isn't the router's firewall for blocking external access?

 

[FoBoT]

nm, you said you checked that, hmmmm......

 

[surd615]

^bump

 

[JackMDS]

NIS also acts as a firewall between the Local Network computers.

On XP you have to start configuring with all forms of protection off, No firewall no Virus control etc. Only after every thing works, you can try invoking the ?Infestation Controls?, one at the time.

NIS has a menu in which you can define uncontrolled interaction between the local computers. E.g., you allow flow of info on all machines having 198.168.xxx.0 to 198.168.xxx.255, since all of these addresses are local it is still protected from the Internet.