"network cable unplugged"

[ed]

Problem with a local area network operating within
telephone line through a network card. Intermittently,
there is an network message "A network cable unplugged"
and the network is down. I have check and replaced
external cables to no avail. I manually reset IP
addresses, which I thought helped for a while, but now
problem is back even though I rechecked the IP addresses.
There doesn't seem to be any explanations of this error
message in the MS information base. Any suggestions
would be appreciated.

 

[Steve Winograd [MVP]]

Problem with a local area network operating within
telephone line through a network card. Intermittently,
there is an network message "A network cable unplugged"
and the network is down. I have check and replaced
external cables to no avail. I manually reset IP
addresses, which I thought helped for a while, but now
problem is back even though I rechecked the IP addresses.
There doesn't seem to be any explanations of this error
message in the MS information base. Any suggestions
would be appreciated.

If I understand your question, your have a HomePNA (Home Phoneline
Networking Alliance) network that connects your computers through the
house's telephone lines.

That message means that your computer can't detect a connection to the
network. In an HPNA network, it means that your computer can't detect
any other computers on the network, i.e. your computer isn't networked
with anything else.

I've seen the same problem using HPNA, and I'm not sure what causes
it. It could be sub-standard in-wall telephone wiring or electrical
noise on the telephone wires. The only solution I've found is to
disable and then enable the network connection. Changing IP addresses
won't have any effect on the problem.
--
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

 

[*Vanguard*]

"Steve Winograd [MVP]" said in

If I understand your question, your have a HomePNA (Home Phoneline
Networking Alliance) network that connects your computers through the
house's telephone lines.

That message means that your computer can't detect a connection to the
network. In an HPNA network, it means that your computer can't detect
any other computers on the network, i.e. your computer isn't networked
with anything else.

I've seen the same problem using HPNA, and I'm not sure what causes
it. It could be sub-standard in-wall telephone wiring or electrical
noise on the telephone wires. The only solution I've found is to
disable and then enable the network connection. Changing IP addresses
won't have any effect on the problem.

Until you mentioned HPNA, I was thinking, "To the telephone line?"
Never used HPNA. Maybe http://www.homepna.org/support/ has some info
that can assist in troubleshooting your problem or illustrate how your
phone networking should be setup.

 

[Bill Castner]

A not riskless way of dealing with this problem, a particularly
irksome one if your are using DHCP determined IPs for your
workstations, is to disable Media Sensing:
http://support.microsoft.com/defaul...port/kb/articles/Q239/9/24.ASP&NoWebContent=1

Best,
Bill Castner