local area workgroup with a router

[luisfig]

I am having a problem in my LAN. This is the scenario. I have a Workgroup of
three computers running Windows XP Professional, call them #1, #2 and #3.

#2 and #3 can see each other in Windows Explorer and can copy files back and
forth, without any problem. #2 and #3 can also see #1 in Windows Explorer.

#1 can Ping #2 and #3 , but cannot receive Pings from #2 and from #3 and
also #1 cannot Ping itself, but can Ping the loopback. Windows Explorer
cannot list the PC's under the Workgroup name.

Also #1 cannot Ping LAN PC's and remote by Names.

I have tried even a new NIC card, and same problem.

I am sure that if I re-install Windows I will solve the problem, but that is
hectic and tedious.

Is there another solution?

 

[Steve Winograd]

I am having a problem in my LAN. This is the scenario. I have a Workgroup of
three computers running Windows XP Professional, call them #1, #2 and #3.

#2 and #3 can see each other in Windows Explorer and can copy files back and
forth, without any problem. #2 and #3 can also see #1 in Windows Explorer.

#1 can Ping #2 and #3 , but cannot receive Pings from #2 and from #3 and
also #1 cannot Ping itself, but can Ping the loopback. Windows Explorer
cannot list the PC's under the Workgroup name.

Also #1 cannot Ping LAN PC's and remote by Names.

I have tried even a new NIC card, and same problem.

I am sure that if I re-install Windows I will solve the problem, but that is
hectic and tedious.

Is there another solution?

A likely problem is a misconfigured firewall program on #1. Boot #1
in "Safe mode with networking" and see if it works right. If it does,
that's more evidence pointing to a firewall.

Note that some antivirus programs have firewall components that have
to be configured, such as "Internet Worm Protection" in recent
versions of Norton Antivirus.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com

 

[luisfig]

Steve thanks. I will try. I have tried almost everything except re-installing
the OS.

 

[luisfig]

Okay Steve, I tried Safe Mode with Networking and it works. I can see all my
computers under MyNetwork Places in Windows Explorer and copy files from one
machine to the other. Thanks a million, what can i tell you, you are a
genious.

However, when I reboot the normal way, the problem is back. Is there a way
to tell the computer to always boot with Networking?

 

[Steve Winograd]

Okay Steve, I tried Safe Mode with Networking and it works. I can see all my
computers under MyNetwork Places in Windows Explorer and copy files from one
machine to the other. Thanks a million, what can i tell you, you are a
genious.

You're welcome.

However, when I reboot the normal way, the problem is back. Is there a way
to tell the computer to always boot with Networking?

Booting in "Safe mode with networking", where no firewall is running,
isn't a good long-term solution.

I'd boot #1 in normal mode and figure out how to configure its
firewall and antivirus programs to allow access by other computers on
the LAN.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com

 

[Lem]

Okay Steve, I tried Safe Mode with Networking and it works. I can see all my
computers under MyNetwork Places in Windows Explorer and copy files from one
machine to the other. Thanks a million, what can i tell you, you are a
genious.

However, when I reboot the normal way, the problem is back. Is there a way
to tell the computer to always boot with Networking?

"safe mode with networking" doesn't *add* networking (to your normal
boot), it *subtracts* various applications. In your case, the
application that is giving you problems (presumably a firewall or
antivirus app) is prevented from running in safe mode.

Thus, follow Steve's advice and figure out what antivirus app(s) or
firewall(s) or "security suite(s)" you have and how to configure it to
permit local network traffic. Note that you should only have *one*
antivirus and *one* firewall active.

If you're at all unsure about what is running on your system, start Task
Manager (ctrl-alt-del), write down all of the running processes, and
Google the names.

--
Lem -- MS-MVP

To the moon and back with 2K words of RAM and 36K words of ROM.
http://en.wikipedia.org/wiki/Apollo_Guidance_Computer
http://history.nasa.gov/afj/compessay.htm