SP said...That's what I thought about the IT guy.

No idea when he said it.
Turn it off then back on... Powercycle...

No idea why he couldn't have just said turn it off then back on.
Thanks SP.
I've done all that many times over.
Mac can't find the printer.
Cables are all connected and I've turned printer off then back on.
I could get Geeks 2u out for $400 for 2 hours or just by another Mac mini for $700.
My Mac mini is 5 years old so it might be money better spent.