Modem - Invalid Dial String

David_UK

Hi,
I've had a 4G modem in use on my T35-W for a few years. Unfortunately, it's now failing to connect and reports "Invalid dial command".

Any ideas?

Thanks.
David

2022-02-27 13:55:28 wvdial OK Debug
2022-02-27 13:55:28 wvdial Modem initialized. Debug
2022-02-27 13:55:28 wvdial Sending: ATDT,99# Debug
2022-02-27 13:55:28 wvdial Waiting for carrier. Debug
2022-02-27 13:55:28 wvdial ATDT,99# Debug
2022-02-27 13:55:28 wvdial ERROR Debug
2022-02-27 13:55:28 wvdial Invalid dial command. Debug
2022-02-27 13:55:28 wvdial Disconnecting at Sun Feb 27 13:55:28 2022 Debug
2022-02-27 13:55:31 pppd Connect script failed Debug
2022-02-27 13:55:31 pppd Exit. Debug

james.carson

Hi David,

The "99#" is the dial string -- this is the standard one for these devices.

I'd suggest trying to put the device in a PC and try to get it to connect there and see if that works. There's likely an error or the device needs a firmware upgrade.