Nice bit of kit matey. I've hooked up an old webstar 2100 that's been flashed with the ambit 250 infinite firmware, and it will read mac fine, but when I go to set mac, it won't let me put two digits in a couple of the boxes?
Screen captured so you can see what I mean.. obvious not a keypad problem as the other ones are ok, tried lower case letters as well but same result:
Screen captured so you can see what I mean.. obvious not a keypad problem as the other ones are ok, tried lower case letters as well but same result: