Seems like this is not the only printer with this issue...Will see if I can access this printers' engineering menu, but the fix noted there on page 5 didn't work for most people.
As most people on that thread posted in the end, best fix for the problem is returning the product and buying a different brand. As one poster said, all the printer is good for in the end is expensive target practice.
/ Always liked HP, but don't think I'm making the mistake again. No foreseeable support as this wifi problem is known for some time now and it seems like nothing is being done....