I have a web server with two network cards, one the "public" nic (connected to a Sonicwall Pro 2040), and another network card (private), plugged into a LAN.
At random times, perhaps once or twice a week, the public network card quits responding. We can no longer access it thru the internet, but I can still use terminal services from the LAN to get to the server.
I've disabled it and reenabled it, and it still doesn't work.
Here's how I finally figured out how to make it work again:
Change the static IP of the NIC to anything other than what it originally was. Then disable it, reenable it, change the IP back to it's original IP. It will then work fine for a few days.
Restarting the server works too.
I've updated the NIC drivers already. The server board is a Intel S5000PSL.
Does anyone have any ideas of why this may be happening?