Today I have been trying to use the App "scan to email" on my HP7740. I select Scan to Email and a message appears "The printer cannot connect to web services. The server may be busy or temporarily unavailable. Try again later". It worked yesterday; how do I resolve? UPDATE: I have checked the printer IP address online. The Web Services Settings has a "green check mark", Web services status= enabled, Internet connection= connected, Printer connection to HP Connected= connected.