Dial tone is present, but not able to access the Internet or email.
Verify the modem is not in ‘Standby’ (if the modem has this option)
Verify modem lights and connections.
There should be 4 cables connected to the modem:
When the phone is hung up, Tel1 /Tel 2 should be solid.
Tel1 /Tel 2 will flash when the phone is in use.
If Tel1 (usually labeled Tel1/2 on the back) is flashing and no one is using the phone, it is possible that one of the phones is ‘off the hook’
If Tel2 starts flashing when the phone is picked up – the phone line is plugged into Tel2 and needs to be changed to Tel1 (usually labeled Tel1/2 on the back)