Can't Ping Self

I have a strange result on one of the PCs on a small network (5 PCs with one
Winserver2003). On one PC I can't ping it's own IP address. I can ping
127.0.0.1 OK. All looks OK with ipconfig /all. I can ping the other hosts on
the network. However from the other PCs, I can't ping the problem PC. The
problem PC shows up on DNS OK. What could be happening?

In news:(E-Mail Removed),
pestocat <(E-Mail Removed)> stated, which I commented on below:
> I have a strange result on one of the PCs on a small network (5 PCs
> with one Winserver2003). On one PC I can't ping it's own IP address.
> I can ping 127.0.0.1 OK. All looks OK with ipconfig /all. I can ping
> the other hosts on the network. However from the other PCs, I can't
> ping the problem PC. The problem PC shows up on DNS OK. What could be
> happening?

So you are implying that DNS resolves the correct IP (it's current IP) for
the workstation in question?

Please provide an unedited ipconfig /all from the server, a good workstation
and from the workstation in question.

Do you have a spyware and virus solution in place? I assume there are NO
viruses on it and spyware?

Is there a firewall installed on the workstation? If you have an antivirus
solution in place, does it have a built-in firewall? If so, disable all
firewalls on the workstation (the Windows firewall and teh antivirus
firewall, and you may as well disable the spyware solution too. Then test it
again.


--
Ace
Innovative IT Concepts, Inc (IITCI)
Willow Grove, PA

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
Microsoft MVP - Directory Services
Microsoft Certified Trainer

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Infinite Diversities in Infinite Combinations
Assimilation Imminent. Resistance is Futile
"Very funny Scotty. Now, beam down my clothes."

The only constant in life is change...

I've run into this before. Usually the machine you are trying to ping
is blocking all ICMP traffice incoming (setting in firewall). Check to
see if this option is in use. If so, disable it.

Found the problem. It was the Norton Anti-Virus/Firewall. I turned off the
Windows firewall and saw no change. But when I turned off the Norton
firewall, I was able to ping myself and the other PCs can now share my
shareable folders. I hadn't changed anything in the setup recently...I
wonder what caused the Norton to misbehave. Thank you for the support.





"pestocat" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
>I have a strange result on one of the PCs on a small network (5 PCs with
>one Winserver2003). On one PC I can't ping it's own IP address. I can ping
>127.0.0.1 OK. All looks OK with ipconfig /all. I can ping the other hosts
>on the network. However from the other PCs, I can't ping the problem PC.
>The problem PC shows up on DNS OK. What could be happening?
>

Wonderful! I'm glad that you have resolved your issues. Now that you
know that the firewall was the reason for you experiencing this issue,
I would recommend that you try to find the exact setting withing the
firewall that was causing this issue and disable that feature (probably
ICMP replies or something worded closely to this) so you still have a
firelewall on your machine. Good luck!

In news:uN1Zu4%(E-Mail Removed),
pestocat <(E-Mail Removed)> stated, which I commented on below:
> Found the problem. It was the Norton Anti-Virus/Firewall. I turned
> off the Windows firewall and saw no change. But when I turned off the
> Norton firewall, I was able to ping myself and the other PCs can now
> share my shareable folders. I hadn't changed anything in the setup
> recently...I wonder what caused the Norton to misbehave. Thank you
> for the support.

Check Norton's settings differences among your workstations. It's firewall
may be turned on by default. What Norton version are you running? Is it the
corp version (centrally controlled) or individual stand alones on each
workstation?

Ace