MY HP Officejet 5740 has worked well since I bought it new. A few months ago the computer began not recognizing the printer when computer was booted up. Scan Doctor was used to re-establish the connection but problem got worse over time. The computer will not recognize the printer with a wired connection either. Finally had computer and printer connection serviced via Geek Squad and the connection was re-established and tested. But the next day when computer was booted the connection was lost although the printer and computer software is up to date. Note: No new programs have been added to the computer that may affect printer. Router connection has also been diagnosed and is without issue. Firewalls have been tested. Cannot figure this out. HELP!