I'm having trouble with my DHCP server on Windows Server 2019. I've set up a DHCP scope with an address pool from 10.0.1.10 to 10.0.1.254. There's one exclusion at 10.0.1.60, and I have several reservations, including 10.0.1.67, .144, .145, .41, .31, .201, and some recent ones at .197 and .203 for troubleshooting. However, it seems like the DHCP server won't assign any address above .196 to new devices. Even when I limited the address pool to .201 - .254 in an attempt to troubleshoot, devices couldn't connect, just showing a 'working on it' message. I've checked for rogue DHCP servers and turned off unnecessary features, but I'm still stumped. I've done the usual ipconfig /release and /renew, restarted the DHCP service and the server, but still no luck. Is there anything else I should check or try?
2 Answers
You might want to double-check the netmask on your lease range. Sometimes an incorrect subnet mask can cause issues with IP address assignments.
Screenshots of your DHCP settings could really help us diagnose the problem better. Any chance you can share those?
And don't forget to check the subnet mask on the devices themselves too. It could be something simple.