PXE over IPv4 no boot device available

I am using a headless Ubuntu 22.04 server for region+rack. I have imported images and discovered. Everything seemed to be operating correctly before the weekend (June 28 -29 2025). The target server was automatically discovered by MAAS and an Ubuntu 24.04 image was being pxe booted onto the target server with a cloud-init error. I came back in on Monday to move forward with commissioning the server. However, when I turned the server back on (maas $profile machine power-on $id) I am no seeing that it timesout due to the following:

>>>Start PXE over IPv4
Station IP address is 192.168.xx.xxx

Server IP address is 192.168.xx.xxx  #This still points to the previous MAAS IP. But, is still a valid IP in DHCP.
NBP filename is bootx64.efi
NBP filesize is 0 bytes
PXE-E18: Server response timeout. 
...

No boot device available.

I did try several BIOS and iDRAC configuration changes and subnet/interface updates. Along with completely removing then reinstalling MAAS and Postgres. Plus, clearing any remaining directories associated with MAAS and Postgres. The MAAS api ip did change.

Is this a configuration issue? or, is this a server issue in not clearing out something?

maybe you have a wrong MAAS URL in the regiond.conf?

In general I would suggest to sudo snap remove --purge maas and the database and start from scratch

It has the correct URL.

I have started from scratch twice now.

How? Do you have another DHCP server on the network?