Keypad buttons starting to fail.
When I start up my LMP/Exception reporter software it give me a “Divide by 0” error and does not start up.
Incorrect code entered. Keypad code is not the same as the code in the lock. Side bolt pressure.
Using wrong master/supervisor code. Lock and keypad not linked properly.
You cable could be damaged or not crimped properly. Cable is longer than 6 ft/2 meters.
No power to connection box or keypad. Bad category 5 cable.
No power to connection box. No power to Keypad.