AT&T USBConnect Mercury Sierra Wireless: “wireless device locked”
I had a user who needed to use an AT&T USBConnect Mercury Sierra Wireless dongle.
After installing the software and running AT&T Communication Manager I found that the “Connect” button was greyed out and underneath and error reporting:
“wireless device locked”
The device was connecting to the mobile network and then dropping off and showing the message.
As this was sent from my NY office, I asked them to make sure that the SIM was activated on the network. It was not. After speaking with AT&T the SIM was activated and then I was able to connect with no issue.