Download and install MTB NK v2.35.3 SL3
Install MTB_NKgtr2_353sl3b to MT Box installation folder: Program files/GriffinTeam/MT box
Download MT Box update tool v3.18
Start MT Box update tool v3.18 from ( c:\Program Files\GriffinTeam\MT-Box\) and update your box.
Run MTB_NKgtr2_353sl3b
In server tab click on Save button and add:
User name: boxlogin
Password: boxlogin