INCORRECT WIFI PASSWORD - TRIED EVERYTHING

I have the same problem as zanestein, I can't connect to my home wifi. I've been connected to my home wifi for almost a year with my iPhone 8plus and now it's showing me [Incorrect wifi Password for "***"(my wifi name).] but my Macbook seems to work just fine. I never sign in the password for my macbook pro as it iTunes Wi-Fi Sync.

Now my macbook is connected to my home wifi with no problem but my iPhone isn't. And I already updated the software to the latest one just now yet still not working. is there any other solution?

Let me make things very clear here according to my understanding and study.

I have gone through complete literature and review of iOS 12.1.3 & 12.1.4 on various news media and on Apple web page including leading news magazines (Forbes). It's my hobby and passion to do so.

No where I could find any link on the problem of "Wifi Password" faced by you. Introspect and have a complete and thorough check on the way you handle settings on your iPhone.

Have you tried resetting your network settings more than once?

I have had to do this once, with a hard reboot in between resets.

I also had to reset the phone settings.

It was a pain for sure to reset everything back up.

I can't recall the reason for doing this. But I was working with tech support over the phone at time.

Whoa! This works! Not after the first reset, nor after the hard re-boot, but after the second network reset - Yes! This did the trick when I thought I tried everything and was about to Erase & Restore.

Thanks for adding the tip, Randy!

Renewing the lease only seemed to be a temporary fix, I think my problem lied with my Virgin media router, I’ve since bought a Ubiquiti wireless access point which is plugged into my old router (I’ve switched Virgin’s WiFi off in the router settings) and I’ve had no problems and much better WiFi coverage throughout my home.

I am having the same problem as zanestein, with ipad-pro 12.1.4. It used to connect just fine, then one day I found it completely discharged, recharged it and now it does not recognize the password. All other devices on the same wi-fi network are working just fine. I tried rebooting, resetting, all of the suggested steps with no luck.

Zanestein, have you solved the problem? If so, could you please post the solution?

Thanks!

You're welcome. It's sounds strange, because all other devices were working. But sometimes a router loses the ability to assign IP addresses. Devices already connected have an IP address, so they don't need to have one assigned, but a device that hasn't connected recently will need a new one and can't get it. This mostly happens with mobile devices that connect and disconnect frequently. The technical term is "DHCP daemon crashed." Rebooting the router restarts the DHCP daemon. This is much less frequently a problem with newer routers.

Restart your router. Remove all power for 30 seconds or so.

You may want to update your iPhone from a different Wi-Fi network and see if that solves your issue.

Like I said above I had to do this 2 times with a hard re-boot inbetween and a reset all settings.

Good luck