What should I do if my Epson ET-2800 shows a network connection error code E-2, E-3, or E-7?

These errors indicate that no wireless network name (SSID) was found or the entered password does not match. Try turning off your router or access point, waiting about 10 seconds, and turning it back on, then move your product closer to the router and remove any obstacles. Also confirm that the SSID uses only ASCII characters and symbols, and verify the correct password is being entered. (Pages 43)