If the Dell Manager still says "not communicating," we bypass the manager entirely and talk directly to the modem using basic AT commands. This tells you if the modem is truly dead or if the Dell UI is just buggy.
If you are seeing a message that the or the utility status shows "No Card Detected," it typically means your computer's operating system cannot find or talk to the WWAN (Wireless Wide Area Network) module. This common issue often arises after a system re-image, a failed firmware update, or due to outdated drivers. 1. Verify Device Recognition in Device Manager dell mobile broadband manager not communicating