Hello @Shiatt , Welcome to the HP Support Community!
shut down printer via on/off switch
switch off the router
shut down the computer
wait about 60 sec.
switch on the router, wait until the router has completely initialized itself again
Switch on the printer, wait until the printer has finished its initialization
switch on computer, log in (with admin rights) and wait about 10 sec.
... and now everything's working again?
Hope this helps! Keep me posted. Andreas
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