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MFP M281 fdw printer

HP pushed an update to my MFD M281fdw and ever since I installed it the printer is starting up, within a minute or two saying “error 79 service error” then restarting.  It was working just fine before the update.  Printer is 14 months old.
I’ve plugged it into the Mac via Ethernet and checked I have the latest software,  strangely when connected to the Ethernet and not the wifi it doesn’t restart with the error but as soon as you unplug the Ethernet it restarts with the same error message.  Makes me think it’s something to do with the wifi  driver as when connected to the Mac and it’s not using the wifi it’s fine.

Other issue that it’s now asking for only Hp toner which is irritating but not as irritating as it constantly restarting.

I’ve restored defaults, tried a reset (thumb on the corner of the display) and nothing works.

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