IP renews itself every 10 seconds!



pishta68
07-10-2005, 01:09 AM
Customers computer had a strange problem. Windows XP would renew the IP from
the cable modem every 10 seconds. Very consistant, you could watch it go up
and down through the "show connection" icon in the system tray and the
network control panel. Tried a different cable modem and it still happened,
tried USB interface and it still happened. Tried my laptop on same cable
modem and it was stable, no problem. Is this guy infected, or does he have a
corrupt winsock? The DHCP lease is set for 24 hours and it would reflect that
in the ipconfig /all command. I didnt look at his runnin g programs for a
virus, thought it might be OS related. Thanks

Budget Print Center
07-10-2005, 01:09 AM
when i ran across that hair puller, i found a faulty connection into the
cable demarc outside the building with water in it, one comp fine..the
other the connection dropped just low enough to force it to
renegotiate...replaced coax fitting..all well for at least a year. good
luck.


pishta68 wrote in message ...
>Customers computer had a strange problem. Windows XP would renew the IP
from
>the cable modem every 10 seconds. Very consistant, you could watch it go up
>and down through the "show connection" icon in the system tray and the
>network control panel. Tried a different cable modem and it still
happened,
>tried USB interface and it still happened. Tried my laptop on same cable
>modem and it was stable, no problem. Is this guy infected, or does he have
a
>corrupt winsock? The DHCP lease is set for 24 hours and it would reflect
that
>in the ipconfig /all command. I didnt look at his runnin g programs for a
>virus, thought it might be OS related. Thanks

pishta68
07-10-2005, 01:09 AM
No, its not that. Cable modem GUI states receive levels are -2/44, well
within -18/60 limits. The cable modem never goes down, we can monitor this.
It is the OS that asks for the IP renew. I have hard coded the IP for now,
and that is stable but it is not a good long term fix. Thanks for the
suggestion though.

"Budget Print Center" wrote:

> when i ran across that hair puller, i found a faulty connection into the
> cable demarc outside the building with water in it, one comp fine..the
> other the connection dropped just low enough to force it to
> renegotiate...replaced coax fitting..all well for at least a year. good
> luck.
>
>
> pishta68 wrote in message ...
> >Customers computer had a strange problem. Windows XP would renew the IP
> from
> >the cable modem every 10 seconds. Very consistant, you could watch it go up
> >and down through the "show connection" icon in the system tray and the
> >network control panel. Tried a different cable modem and it still
> happened,
> >tried USB interface and it still happened. Tried my laptop on same cable
> >modem and it was stable, no problem. Is this guy infected, or does he have
> a
> >corrupt winsock? The DHCP lease is set for 24 hours and it would reflect
> that
> >in the ipconfig /all command. I didnt look at his runnin g programs for a
> >virus, thought it might be OS related. Thanks
>
>
>


IP renews itself every 10 seconds!