This has been driving me mad and I was wondering if my 15 Pro was defective. I didn't transfer any settings or data from my old phone to my new one—wanted to start with a clean slate—yet here I am battling wonky WiFi issues that I didn't have with my old 12 Pro. (My old 12 Pro is working fine for my wife.) My phone thinks it's connected to my home WiFi, but no data comes in or goes out unless I switch WiFi off and on again. It'll work for some random period of time before silently ceasing to work. I've even reset my networking settings completely, but that hasn't helped. I guess I'm glad it's a software issue and not a hardware one…