touchscreen keep freezing on m2pc


I have a problem, i have a m2pc, onyx latest version on a asus rog g752vs with windows 10 pro 1803 build.
Touchscreen on m2pc after 4_5 sec freeze, but on laptop i can see feedback where i am pressing touchscreen.
Also from time to time the m2pc lost connection with laptop.The cable is good.
I search forum first i think it was problem with windows update, than i see here that problem with windows update got fixed.
Can anybody give a solution.
I am new into martin-onyx stuff.