I have a windows server 2003R2. It serves about 10 computers in our office via a gigabyte switch.
One time, several months ago, windows updated itself. WHen We came in on monday, nobody could log in. I checked the server and it kept alternating between "A Network cable is unplugged" and "Network Connection" . On Off On Off it would blink back and forth.
Our network guy said that windows updates can goof things up like that sometimes, so we should reboot the whole system manually. SO we shut everything down, including the firewall, cable modem, and switch. WHen it came back up, it worked again.
Now here we are 6 months later, and we are getting the same issue. This time, the reboot method didn't make it work. I was at the end of my rope when suddnely it held it's connection again. All by itself it decided to stay connected.
I do think windows update was involved this time as well. EVery time it decides to freak out, we lose lots of work. Has anyone seen this issue?