Networking/can't uninstall-reinstall TCP/IP protocol

Hello all,
I am having a problem with networking.
I must have done something because all of a sudden
I can't ping anything but myself and the loopback address.
I've checked the routing tables and those are okay.
I have even reinstalled the driver for the NIC(which says
this device is working properly). I've tried changing
cables also. Lastly, I took the computer off of the
network and put it on a private switch with another host
to see I could ping host B. No dice.
I don't have any firewalls going.

I tried reinstalling the TCP/IP Protocol by deleting the
folowing keys:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\Winsoc
k

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\Winsoc
k2

then rebooting, but that doesn't work as Winsock2 will not
go away.

Therefore I can't add the TCP protocol like so:

To reinstall TCP/IP, follow these steps:
Right-click the network connection, and then click
Properties.
Click Install, click Protocol, and then click Add.
Click Have Disk
Type C:\Windows\inf, and then click OK.
In the list of available protocols, click Internet
Protocol (TCP/IP), and then click OK.
Restart the computer.

Anybody have any ideas?

Thanks,
David Williams

Try adding alternative protocol like IPX/SPX. Then remove TCP, install TCP,
remove IPX/SPX.

Dusko Savatovic

"David Williams" <(E-Mail Removed)> wrote in message
news:1b9ce01c45150$04611000$(E-Mail Removed)...
> Hello all,
> I am having a problem with networking.
> I must have done something because all of a sudden
> I can't ping anything but myself and the loopback address.
> I've checked the routing tables and those are okay.
> I have even reinstalled the driver for the NIC(which says
> this device is working properly). I've tried changing
> cables also. Lastly, I took the computer off of the
> network and put it on a private switch with another host
> to see I could ping host B. No dice.
> I don't have any firewalls going.
>
> I tried reinstalling the TCP/IP Protocol by deleting the
> folowing keys:
>
> HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\Winsoc
> k
>
> HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\Winsoc
> k2
>
> then rebooting, but that doesn't work as Winsock2 will not
> go away.
>
> Therefore I can't add the TCP protocol like so:
>
> To reinstall TCP/IP, follow these steps:
> Right-click the network connection, and then click
> Properties.
> Click Install, click Protocol, and then click Add.
> Click Have Disk
> Type C:\Windows\inf, and then click OK.
> In the list of available protocols, click Internet
> Protocol (TCP/IP), and then click OK.
> Restart the computer.
>
> Anybody have any ideas?
>
> Thanks,
> David Williams

Actually David, if I understand your method, I used exactly that same method
a few days ago to fix TCP/IP on an XP Pro box.

First, I deleted the corrupt registry keys, winsock and winsock 2 (I forget
the exact full registry path, but search should turn it up).

Second, since you can't uninstall TCP/IP in XP (it's considered a core
component), I reinstalled TCP/IP using the method you described. The
filename I browsed for in the \Windows\Inf folder was "nettcpip.inf". Is
that what you did? After a restart, that fixed my problem (corrupt TCP/IP
due to a 3rd-party firewall program, which I uninstalled prior to the
protocol reinstall).

Bryan

"David Williams" <(E-Mail Removed)> wrote in message
news:1b9ce01c45150$04611000$(E-Mail Removed)...
> Hello all,
> I am having a problem with networking.
> I must have done something because all of a sudden
> I can't ping anything but myself and the loopback address.
> I've checked the routing tables and those are okay.
> I have even reinstalled the driver for the NIC(which says
> this device is working properly). I've tried changing
> cables also. Lastly, I took the computer off of the
> network and put it on a private switch with another host
> to see I could ping host B. No dice.
> I don't have any firewalls going.
>
> I tried reinstalling the TCP/IP Protocol by deleting the
> folowing keys:
>
> HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\Winsoc
> k
>
> HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\Winsoc
> k2
>
> then rebooting, but that doesn't work as Winsock2 will not
> go away.
>
> Therefore I can't add the TCP protocol like so:
>
> To reinstall TCP/IP, follow these steps:
> Right-click the network connection, and then click
> Properties.
> Click Install, click Protocol, and then click Add.
> Click Have Disk
> Type C:\Windows\inf, and then click OK.
> In the list of available protocols, click Internet
> Protocol (TCP/IP), and then click OK.
> Restart the computer.
>
> Anybody have any ideas?
>
> Thanks,
> David Williams