Ring Chime stop working

I've been using Ring doorbell with the Chime for almost half a year now, few weeks ago they both disconnected. I've fix the doorbell, but the Chime just wont connect to my wifi. I've try everything, restarting modem, trying with different phones, reinstalling the app or having it close to the modem. It always leads to the page where it ask to choose our WIFI, and it doesnt show ours but others random WIFI. How to fix this??