I have to reset my network settings every few days
Still on a 4s, but running iOS 9.2.1.
Every 48-72 hours, my phone will no longer connect to wifi networks. It will reject the passwords consistently until I reset the network settings and enter the password from scratch. I've noticed similar issues with users a few years back in the support community and there are no real answers. I neither rate "Restore phone from backup" as an answer, nor "Reset phone to factory settings". There has got to be a better answer other than start over or buy a new phone, shouldn't there?
iPhone 4S, iOS 9.2.1