Had wifi password issue here this evening. First noticed my TV wasn't connect and it couldn't find my 5GHz network, only my 2.4. Went to my phone and tried to log in to 5GHz. Got "Incorrect password" on both devices. Checked router settings and they were fine. Rebooted the router and the wifi disconnect and "incorrect login" went away. In my case it was a flaky Netgear router, not my iPhone.
Funny thing is, I try rebooting and it never seem to work most times. I noticed my iPad never has any issues staying connected though. That’s interesting.
I have been having the same password issue as well and it’s so annoying. It takes 3-4 attempts to get it to connect. And then sometimes it’ll say no internet even though it’s connected when my iPad is connected to it with no problems.
Yep that’s me as well. I found a workaround, just connect to the 2.4ghz after you notice it won’t connect back. It will connect successfully to that then 5Ghz will work right after.
I reported the issue to Apple. So hopefully it gets a fixed.