Error when setting up printer
I'm on a mac mini running Sierra and have been using my old HP laserjet 4300n fine up until now. We recently moved house and when I plugged everything back in, it's stopped working. It's all connected the same as it was and the printer adder thingy is finding my printer ok (through a jet connect card - bonjour) but when I go to add it and it gets to the setting up 'hp laserjet 4300' I get an error
An error occurred while trying to add the selected device.
server-error-internal-error
I've reset the printing system a couple of times, removed the printer drivers and they've redownloaded from apple ok but still it's erroring. It won't even add a basic Acrobat driver that doesn't require an external connection to anything. No software has been changed other than when I reset the printing system and it downloaded again. I've currently got no printers available at all as it errors every time, no matter what I try to add.
Help!!
Mac mini, macOS Sierra (10.12.6)