APN and Switching Issue

I have just installed Mikrotik Chateu 5G router, however i found difficult to get everything working.

I have 24POE switch connected to Router, however i cant acccess any devices through WIFI to deviced connected to the switch, what i am doing wrong?

Another issue is with APN, i have Static IP set to the router, however i cant access anything outside the routers internal network.

Any ideas whats wrong? Router is by default settings from the box.