Dell Mobile Broadband Manager Not Communicating

Verify that your network settings are correct. Check your APN (Access Point Name) settings, username, and password with your network provider.

You have exhausted all steps. The modem refuses all commands. Device Manager shows "Error Code 10" or "Device cannot start." It's time to replace the DW series card.

Many Dell Latitude and Precision laptops have a physical switch on the right or left side (or a dedicated key combo like Fn + PrtScr ) that disables all wireless radios. Toggle it off and on again.