K
kfergus
We have been having network disconnect issues for about
eight weeks now. The network consists of one Win2000
domain controller(running active directory and acting as
an application server for MAS90), 6 Win2k clients and 4 XP
clients logging into the domain. There are 2 additional
Win2k clients that are on the network, but are logged onto
locally and run CAD programs. The problem began the week
before the 4th of July. I was installing SP4 on the Win2k
clients and doing the critical updates on the rest of the
machines when I started having issues (I did not install
SP4 on the server). During the update process all
machines lost network connectivity. I rebooted the server
and that had no effect. I unplugged the power to the
network switch and that seemed to fix the problem. During
the rest of the week the problem reoccurred once daily
until the end of the week and it happened several times.
I replaced the switch thinking that was going bad. The
next week the issue started again and would happen once a
day. Each time the users found that if they did nothing
the connectivity returned after 10 to 15 minutes. We also
found that once a week there would be an episode where the
only way to restore connectivity would be to unplug the
switch and have all users reboot then plug the switch back
in. Nothing was done to the server. Two weeks ago, I
installed the latest critical updates to all machines due
to the Virus issues. After that we went one week with no
disconnect issues. Last week the problem started all over
again. One time a day, users waited 15 minutes and
everything worked. Yesterday the only way to fix was
unplug the switch and reboot all machines. Today the one
time disconnect and after 15 minutes connectivity
returned, nothing else needed. Any ideas where to look
for the cause of the issue?
Thanks in advance for any input.
Kirk Fergus
eight weeks now. The network consists of one Win2000
domain controller(running active directory and acting as
an application server for MAS90), 6 Win2k clients and 4 XP
clients logging into the domain. There are 2 additional
Win2k clients that are on the network, but are logged onto
locally and run CAD programs. The problem began the week
before the 4th of July. I was installing SP4 on the Win2k
clients and doing the critical updates on the rest of the
machines when I started having issues (I did not install
SP4 on the server). During the update process all
machines lost network connectivity. I rebooted the server
and that had no effect. I unplugged the power to the
network switch and that seemed to fix the problem. During
the rest of the week the problem reoccurred once daily
until the end of the week and it happened several times.
I replaced the switch thinking that was going bad. The
next week the issue started again and would happen once a
day. Each time the users found that if they did nothing
the connectivity returned after 10 to 15 minutes. We also
found that once a week there would be an episode where the
only way to restore connectivity would be to unplug the
switch and have all users reboot then plug the switch back
in. Nothing was done to the server. Two weeks ago, I
installed the latest critical updates to all machines due
to the Virus issues. After that we went one week with no
disconnect issues. Last week the problem started all over
again. One time a day, users waited 15 minutes and
everything worked. Yesterday the only way to fix was
unplug the switch and reboot all machines. Today the one
time disconnect and after 15 minutes connectivity
returned, nothing else needed. Any ideas where to look
for the cause of the issue?
Thanks in advance for any input.
Kirk Fergus