Network Interfaces Disappearing



mike
07-10-2005, 02:14 AM
Running into a strange problem and not sure how to solve it.

Installed a water cooling system a few weeks ago. When I brought the
system back up, the onboard lan no longer worked (a Realtek 8139
chipset). It disappeared from the device manager altogether and
appeared to be gone from the system.

I assumed something got klutzed and put in a new NIC. When I installed
the new NIC, the onboard lan appeared in the device manager once again
and was functional. After I restarted the computer, both the new NIC
and the onboard lan disappeared from the device manager again and
neither one was functional.

Removed the new NIC, the onboard lan came back until I restarted, then
vanished again. I installed the new NIC a second time, which did
nothing. I have been without network connectivity on that box ever
since.

I reinstalled Windows XP to try to correct the problem, and it seemed
to fail to find either the new NIC or the onboard lan. Then I installed
another new NIC, which brought up the first NIC and the onboard lan.
When I restarted, all of them went away.

I do not believe this is a hardware problem. Booting under knoppix
brings up the onboard LAN with the NICs and each one is functional. The
water cooling kit draws power from 3 sources: the heatsink plugs into
the cpu fan 4 pin connector on the motherboard, the radiator plugs into
the standard power supply, and the water pump plugs into a second 4 pin
connector on the motherboard. It's a thermaltake big water kit and I
have used it on other XP systems (but different motherboards) without
incident.

So, I am thinking this is a Win XP problem but I am not finding any
solutions in the knowledge base. Any help would be appreciated.

M

Mark L. Ferguson
07-10-2005, 02:15 AM
These may be worth a look:

Dial-Up Networking Connections Do Not Work After Upgrade to Windows XP:
http://support.microsoft.com/default.aspx?scid=kb;en-us;303488&Product=winxp

Q320558 - dim Dial-up Modem or PPPoE Option in New Connection Wizard Is Unavailable:
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q320558

--

Mark L. Ferguson
FAQ for MS Antispyware version 1.0.509
http://www.geocities.com/marfer_mvp/FAQ_MSantispy.htm
marfers notes for windows xp http://www.geocities.com/marfer_mvp/chatNotes.htm
..
"mike" <mhaddress-stuff@yahoo.com> wrote in message news:1117542795.402459.325900@g14g2000cwa.googlegroups.com...
> Running into a strange problem and not sure how to solve it.
>
> Installed a water cooling system a few weeks ago. When I brought the
> system back up, the onboard lan no longer worked (a Realtek 8139
> chipset). It disappeared from the device manager altogether and
> appeared to be gone from the system.
>
> I assumed something got klutzed and put in a new NIC. When I installed
> the new NIC, the onboard lan appeared in the device manager once again
> and was functional. After I restarted the computer, both the new NIC
> and the onboard lan disappeared from the device manager again and
> neither one was functional.
>
> Removed the new NIC, the onboard lan came back until I restarted, then
> vanished again. I installed the new NIC a second time, which did
> nothing. I have been without network connectivity on that box ever
> since.
>
> I reinstalled Windows XP to try to correct the problem, and it seemed
> to fail to find either the new NIC or the onboard lan. Then I installed
> another new NIC, which brought up the first NIC and the onboard lan.
> When I restarted, all of them went away.
>
> I do not believe this is a hardware problem. Booting under knoppix
> brings up the onboard LAN with the NICs and each one is functional. The
> water cooling kit draws power from 3 sources: the heatsink plugs into
> the cpu fan 4 pin connector on the motherboard, the radiator plugs into
> the standard power supply, and the water pump plugs into a second 4 pin
> connector on the motherboard. It's a thermaltake big water kit and I
> have used it on other XP systems (but different motherboards) without
> incident.
>
> So, I am thinking this is a Win XP problem but I am not finding any
> solutions in the knowledge base. Any help would be appreciated.
>
> M
>


Network Interfaces Disappearing