|I had a similar problem. My printer hp Photosmart 6520 would randomly disconnect. The message I would get is "Scan to computer no longer available". The problem was the modem/router losing internet and causing the network to crash. After a firmware update to the modem/router from my ISP the problem no longer exists. You could go to hp.com and reinstall the drivers for Windows 7. Another way to fool the computer is to uninstall your wifi card and/or your COM port for the printer in device manager. Windows will automatically detect it again, and either self install or let you choose to search in Windows Update. If your modem/router and card is working you can look in your router/modem (192.168.0.1, what ever username and password you made for it, default: admin, password or admin, admin) in the wireless settings, and find either the IP(Wired) address or MAC(Wireless) address through the DCHP client list. Enter it into your address bar and communicate directly with the printer from your computer. Easier way is to plug a USB cable into the computer and see if it is the printer itself. This is more process of elimination.|
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