Bed leveling method not working with Repetier firmware 0.92.9?
As a guess, you are using the wrong command. If set for n x n grid, you get 3 point measurement with G29, but that is not auto leveling, it is just setting Z height - based on average height at 3 points.

What you need is G32 S2 with S2 to store result in EEPROM (and therefore you should have EEPROM enabled with auto leveling. It is also used to store endstop offsets).