@frodooftheshire said in One Server -2 NICs, Different IPs:
Ok guys...update from today:
After going through things more, apparently both adapters were "bridged" via a Microsoft virtual adapter in Windows giving the "switch"a 51.6 IP address. This makes zero sense to me. Considering both ports were connected to the same Cisco router - potentially there could have been some switch/loop issues.
Anyways, I ended up disabling the "virtual switch" & secondary NIC (for now). I also found out that there was another small switch that was connecting to another network (from another business) in the building that had a Comcast gateway with its DHCP server turned on - handing out addresses in 10.1.10.X range. Fun stuff.
Anyways things seem to be working well now.
One just weird thing and another - WTF?
Why is the server plugged directly into a router and not a switch? I suppose if the situation is small enough and you have enough ports on the router (thinking ER-X here), OK maybe...
And someone else's network is connected to this network? How in the world did that happen? lol
Sounds like you are in for some good billing fixing someone else's mistakes.