Comcast High-Speed 2go Quick Start Manual & Device User Manual page 11

Insert
a. Disconnect any active Internet connection before inserting the
Comcast 4G Mobile Broadband device.
b. Flip the USB plug on the 4G Mobile Broadband device out, and
insert it into a USB port on your laptop.
c. Windows automatically detects the 4G Mobile Broadband device
and installs the drivers. When finished, a message similar to "Your
device is ready to use" or "Your new hardware is installed and ready
to use" may display in your system tray.
d. Allow at least two minutes for the device installation process.
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