Hi,
I have a very complexing problem and I’m looking for any help or ideas
anyone may have.
We have 2 servers – one running SBS 2008 Standard and one running WS
2003 Enterprise which is also a terminal server.
We have Comcast business cable.
Since we set these servers up there has been an inconsistent but
frequent issue where the following happens:
1. External users cannot reach the RWW or associated services like the
Terminal Server.
2. Internal users cannot reach the Internet.
3. Internal users can work internally (email, database access, etc.)
just fine during these times.
4. The cable modem is pingable from the outside.
5. The cable modem is not pingable from the inside.
This happens somedays literally 30-40 times and some days 0 and some
days something in between.
This happens at all times of the day and night – including when there
are no users and when everyone is connected.
Troubleshooting we have tried:
1. Run the BPA and no issues.
2. Viewed event logs and no issues.
3. Checked server status (DNS, etc.) and no issues.
4. Comcast has been here repeatedly and have found nothing wrong on
their end but have said that it’s a problem with our set up, our
switch, our software, etc.
5. Comcast switched the cable modem.
6. Comcast suggested unplugging the modem from inside the server
closet and plug it to another outlet. This seeemed to do the trick
for awhile and then back to the same behavior.
7. In order to see if it was our server/switch/etc. I plugged my
laptop directly to the cable modem one night. Nothing else was hooked
into the modem except the laptop and nothing to my laptop. Then I ran
a continous ping. It did have the same disconnect problem during the
night. My laptop was running Vista Ultimate.
8. Searched newsgroups, knowledge base, etc. etc. etc.
We are at our wits end. We have remote users who are repeatedly
interrupted. We have professionals who have to access our client
databases in emergency situations at night. Etc. So this is not
good.
Any ideas at all?
Thanks.
Mark
