Q: connect to wifi

Good morning Gee arie,
 

Thank you for participating in the Apple Support Communities.
 

If you can't connect to Wi-Fi on your iPhone 6s Plus, you can use the steps at the following link to troubleshoot the situation:
 

If your iPhone, iPad, or iPod touch won’t connect to a Wi-Fi network
 

You can also find some help with iPhone activation issues in If you can't activate your iPhone.
 

All the best.