Delete the reservation on the NT DHCP server. Reboot the Win95 machine. That would have helped tremendously. Sorry there's no nifty icon on the desktop, but you can add your own shortcut. Press the 'release all' button to release any learnt IP addresses.
Dynamic allocation is the way to go.
Dynamic allocation is the way to go. Harken back a couple of weeks to our periodic refresh of memories on how MS networking insists upon owning an assigned IP address, willy nilly. It is for that reason I recommend against dynamic assignments. Keep Bind 8 working on that Unix machine. The main EDU network is INW4 and DHCP only for about 500 boxes.