When I start the program, and am entering my password, I've found I need to turn Keymaps On and then turn them off, for ISBoxer to properly disable all the keys.

I then turn repeater on, and am able to enter my password, and then the authenticator code, and get into game fine.

At toon select screen, I need to turn repeater on again, even though it was never turned off.
To broadcast enter for all toons to enter the game.

Once I'm in game, I press repeater again.
And get the message repeater activated.
Then press a second time for repeater deactivated (and turns off my M1 key, which I use as the hotkey).

I then press M3 (which is my Keymaps On) hotkey.
And am able to play normally.

Once I'm past this point and into the game, M1 (keyboard repeater), M2 (mouse repeater) and M3 (keymaps) work as expected. If the M light is on, that option is on, and if its off then the option is off.
Not really sure why I have to do the extra presses, but its not a big deal and takes an extra 10-15 seconds or less.
And IS Boxer is so much stronger then anything else I've seen.