Archive. This is an archive of the Apple Support Community. Discussions are being restored and soon you will be able to read and post here again.

IOS 27.2 Issues

Has anyone else had difficulties after updating to IOS 27.2. The WiFi keeps crashing on my iPhone 16 and the phone itself is much more sluggish than before. I get a repeated error telling me my network is unreliable. The WiFi network is working perfectly well on all other devices in my home. Same error appears when trying to play a Facebook video reel or You Tube video over a cellular network, despite both cellular and WiFi showing as strong signals. What's worse is I cannot back up to my previous IOS


2 replies

Turn off the router

Force restart the iPhone

Restart the Router


If you have no access to the router, talk to the administrator.


27.2.1 is the latest but they are security fixes.

Re: “… I cannot back up to my previous IOS … “


If you mean “revert”, “restore”, or “roll-back” you are correct.


Apple does not provide a mechanism to go back to an older, previously installed iOS.