I'm running two DHCP servers both with Windows Server 2012. They are set up as with high availability using "load balanced, split 50/50." They named DC1 and DC2.
This morning, DC1 was frozen, there was a black screen and the computer was completely unresponsive. There is nothing in the event log that suggests what went wrong. I ended up having to hard reset it. It seemed that DC2 was not picking up the slack while DC1 was down. I noticed because a new computer I plugged into the network was not being assigned an IP address. Also, address renewal had failed on another computer, this was in the event log:
Your computer was not able to renew its address from the network (from the DHCP Server) for the Network Card with network address XXX Your computer has lost the lease to its IP address 192.168.1.XXX on the Network Card with network address XXX.
If DC1 is not working, shouldn't DC2 automatically start issuing IPs and addressing renewal requests? Or is this something that has to be configured somewhere? I'm not very familiar with how this works, so any assistance would be appreciated.
I'm wondering if this was because DC1 wasn't actually unplugged or turned off, just frozen?