Since you had it set to dhcp, if you rebooted the server would it come up with an address in the 169.xxx.xxx.xxx range like most other devices? (I’ve never tried this so I’m not sure).
If it did then it would be as simple as changing the IP of your computer to the same subdomain and connecting, might require a direct connection which would require a crossover ethernet cable, but this depends on how your switch is set up.