When I got to work this morning, the server was fine. Then starting a little while ago this error popped up in the event log over and over and nothing is working....AD, mapped drives won't connect, etc.
Event ID 2019
The server was unable to allocate from the system nonpaged pool because the pool was empty.
This is a windows 2003 DC. The only recent changes made were the installation of microsoft updates yesterday and a reboot of the server yesterday afternoon....but the server rebooted and was fine all night (we have people using it 24/7).