Instead of giving you a code to type on the keypad, the computer asks you for the keypad's PIN. If that happens, try this:
When it asks you for a code, click into the field, and type "0000" on the regular computer keyboard, then click the Connect button.
Immediately after that, type "0000", followed by enter, on your Dragonframe Bluetooth keypad.
Wait 15-30 seconds.
Note: The computer will not provide visual feedback of the keypresses.