Re: Weird LAN Problem

Tech-Archive recommends: Fix windows errors by optimizing your registry

I would say you either have a security issue on the XP machine which
prevents connections, such as a firewall, you trying to reference the XP
machine by hostname (not by IP) and the hostname is not recognized, or a
cabling problem.

I have seen this behaviour before with CAT 5 cabling where the pairing was
done incorrectly or a faulty cable.

James

"Dennis Jelavic" <djelavic@xxxxxxxxxxxxxx> wrote in message
news:OJOcC8wfGHA.5088@xxxxxxxxxxxxxxxxxxxxxxx
Hope someone can help.

1. I have a small network with two computers - one running XP and the
other running Win 2K.
They are networked on a workgroup through a NetComm router which provides
both machines access to the internet.
The Win 2K machine connects to the router thru a DLink DWL G510 wireless
adapter and the XP machine connects to the router via a REALTEK ethernet
adapter. The Netcomm router is configured to provide IP addresses to the
two computers dynamically
Both computers can access the internet thru the router and both computers
can ping the router. The XP machine can ping the Win2K machine but the
win2K machine can't ping the XP machine. (accordingly the XP machine can
"see" the win2K machine in My Network Places => Entire Network =>
MicroSoft Windows Network => workgroup name but not vice versa).

2. After trying everything I could think of with no success I
reinstalled Win2K on the machine (and the device driver for the network
card) to no avail. I still had exactly the same problem.

3. I then took out the wireless card from the win2K machine and
installed a SWAN ethernet NIC and got exactly the same results.

4. I then connected the win2K machine directly to the ethernet adapter
in the XP machine, bypassing the router altogether. The XP machine could
still ping the win2K machine but the Win2K machine could still not ping
the XP machine.

5. As a final insult to my efforts, I returned the configuration as it
was originally ( at least thru this both machines could get at the
internet, but as the wireless network was originally set without an
encryption key, encryption was set on the router and on the win2K machine.
The XP machine could still access the internet but the win2K machine
couldn't. So I removed encryption from both devices, fully expecting to
have internet access again from both machines. However the XP machine is
still OK but I can now no longer get access to the internet thru the Win2K
machine.

6. The IP addresses all seem to be being generated OK and there are no
conflicts.

Can anyone throw any light on what is going on? Or suggest some further
avenues of examination.

Getting desperate

Dennis Jelavic




.

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