Cannot change wireless settings

Ok cnc… works ok need better software
Laser… works ok for engraving but cutting not so much
3d printing have not used yet

changed my router need to reset up wireless but i cannot get the main menu to display on the touch pad.

How do i fix this!!!

swipe left on the touchscreen and you can access the settings, here you can change the wifi that your machine is connected to

thanks, tried it , didnt work. rebooted system again and it finally worked. Thanks again