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From: jtpryan on 10 May 2010 13:41
I have a fully patched SBS 2003 installation. For some reason since
about the middle of April it will suddenly isolate itself from the
network. By this I mean that while I can get on the console and all
seems well, the server cannot see the internet, nor can it see
anything on the LAN. Of course, nothing can see it either. My
suspicion is ISA, but I suppose it could be the 4-port NIC as well.

Has anybody seen this? The only way I can resolve it is to reboot
it. No matter of stopping/starting services has any effect.

-Jim
From: kj [SBS MVP] on 10 May 2010 14:09
jtpryan wrote:
> I have a fully patched SBS 2003 installation. For some reason since
> about the middle of April it will suddenly isolate itself from the
> network. By this I mean that while I can get on the console and all
> seems well, the server cannot see the internet, nor can it see
> anything on the LAN. Of course, nothing can see it either. My
> suspicion is ISA, but I suppose it could be the 4-port NIC as well.
>
> Has anybody seen this? The only way I can resolve it is to reboot
> it. No matter of stopping/starting services has any effect.
>
> -Jim

Check to see if your default gateway setting is changing to <empty>.

What are you doing to recover from this condition, rebooting, or does it
just come back to life?

--
/kj


From: Dave Nickason [SBS MVP] on 10 May 2010 15:18
Also check that ISA isn't going into "lockdown," which by default it will do
if the logging fails. Anything in your system or application logs (which
their should be if it's ISA)?



"kj [SBS MVP]" <KevinJ.SBS(a)SPAMFREE.gmail.com> wrote in message
news:OjNhhvG8KHA.1888(a)TK2MSFTNGP05.phx.gbl...
> jtpryan wrote:
>> I have a fully patched SBS 2003 installation. For some reason since
>> about the middle of April it will suddenly isolate itself from the
>> network. By this I mean that while I can get on the console and all
>> seems well, the server cannot see the internet, nor can it see
>> anything on the LAN. Of course, nothing can see it either. My
>> suspicion is ISA, but I suppose it could be the 4-port NIC as well.
>>
>> Has anybody seen this? The only way I can resolve it is to reboot
>> it. No matter of stopping/starting services has any effect.
>>
>> -Jim
>
> Check to see if your default gateway setting is changing to <empty>.
>
> What are you doing to recover from this condition, rebooting, or does it
> just come back to life?
>
> --
> /kj
>
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