iPhone 14 Pro - intermittent Wifi

i worked with apple support and an app vendor for about a week and got absolutely nowhere, the end result was send it back for a replacement. As a last ditch effort I factory defaulted and deleted everything. Then I set it backup using my old phone again and it works perfectly. I’m guessing something got corrupted in the original transfer of data.

also if you have any beta firmware or apps do not transfer to the new phone, install it from scratch on the new phone once the data has transferred.

SOS mode means that cellular is working on your phone, but not to your carrier. It’s almost always a carrier problem, so contact the carrier. If you are in a weak signal area make sure you have Wi-Fi calling enabled on your account and turned on in Settings/Cellular.

My wifi is connected both 5G and 2.4 and there JS less connection issue but still does it and now purple shows on some photos unless hardware they won’t express replace but I guess they will now. I had modem replaced so has to be the phone.

My iPhone 13 Pro is disconnecting from Wi-Fi when I unlock it and "wake" from standby. When I start using the phone again it disconnects from my Wi-Fi network, shows LTE icon, then after a couple of seconds it reconnects to Wi-Fi. This happens every time I unlock my iPhone (it doesn't matter if I am near the router or not). I tried to reboot my router and to reset the network setting. Initially everything was ok but it started doing it again after a couple of days and I was forced to reboot my iPhone. I noticed this issue after the 16.2 update, it persists on 16.3.1 (the first time it happened was at the end of January).

You can watch what happens in this video: the behavior is the same even if the post is old (https://www.reddit.com/r/ios/comments/f1c9t7/wifi_disconnects_and_reconnects_when_unlocking/?utm_source=share&utm_medium=web2x&context=3).

What fixed it?

This might be a possibility→Resolve Wi-Fi and Bluetooth issues caused by wireless interference - Apple Support

I was able to resolve my issue by resetting the network settings on the phone. Not sure why my wife’s identical phone worked out of the box but mine didn’t. This is what I did.

All sorted now woohoo

I confirmed that the network dropping behavior is the same on another WiFi router, an older one. The phones are now on iOS 16.1.1 and the problem has not been resolved.

What was the fix? I’ve just updated to iOS 16.2 and still having the same issue

Are you using VPN?

Are you using VPN?

Same exact router, same issue. My wife on an iPhone 11 has zero issues.

Does it happen with any other Wi-Fi networks? If not, and it is only with your home router, by process of elimination the problem MUST be with the router.