Re: NIC Cards Stop Responding
- From: "Michael Giorgio - MS MVP" <Michael.Giorgio@xxxxxxxxxxxxxxxxxxx>
- Date: Wed, 5 Apr 2006 10:02:33 -0400
I don't think it is denial of service. Could be a corrupt stack. That
being the case try reinstalling the stack:
http://support.microsoft.com/kb/325356/en-us
"Brazell" <Brazell@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message news:
I have replaced the NIC cards.
Could this be a Denial Of Service attack causing it? Someone also
suggested
checking the Wake-On-Lan option. If it is a DOS how do I prevent the
problem
while still allowing access to the needed services. I have tried putting
it
behind a hardware firewall and only allowing the selected ports to pass
through to the server (80, 443, 1433, etc.)
"Michael Giorgio - MS MVP" wrote:
Have you tried swapping out the NIC?
"Brazell" <Brazell@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:E9250588-E77F-4BD1-A723-1A23538C8175@xxxxxxxxxxxxxxxx
I have enough experience and knowledge to be really dangerous but as
such
can
usually muddle my way through most problems but am stuck on this one.
We
have a Windows 2003 Server running IIS and have 3 static IP addresses
on
the
internet on one NIC for it. We also have anthoer NIC for the internal
network. This arrangement had worked well until recently when it seems
the
IP stack work quit responding on the external IP addresses. I could
typically do a "Repair" on the NIC and it would begin responding to
external
requests again. I have tried using the Windows Firewall with the ports
open
for HTTP, HTTPS, SMTP, SQLServer and POP3. It will work for a while
then
quit responding. Requests to ASP.NET pages will give an error 503.
When I have ICMP open, it will also stop responding as well. Normally
after
repairing or rebooting the computer the system will start responding
and
will
work for a couple of hours. I have also added a couple of additional
NICs
and separated the three fixed IP addresses to separate NICs. They seem
to
stay up a little longer but all start dropping offline.
What are some of the logging diagnostics that I need to try turning on
to
track for problems. Any areas that I should look at etc. Any
configuration
issues that I should check. I have even tried putting a router between
the
cable router and the server that would only allow the ports for the
services
named above to have access but it still received the same problems.
Thanks
Joe Brazell
.
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