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I have an iPhone 12 64GB and the 5GHz personal hotspot stopped working a few months back.
The "Maximize Compatibility" switch doesn't seem to do anything, it always shows up as a 2.4GHz network on my other devices.
I have used it previously on my laptop and Meta Quest 2 and the 5Ghz band was working fine.
After the iOS 16.2 update it stopped working. Any ideas what the problem could be?
The feature works as described for me. When I enable "Maximize Compatibility" the personal hotspot is 2.4GHz and when I disable it is 5GHz. I am running iOS 16.4 beta with iPhone 14 Pro.
In my testing one thing I noticed is if you had "Maximize Compatibly" enabled and a device is currently connected to the hotspot it will not switch to 5GHz immediately when you disable it. To make sure it switches 5GHz I first disabled Maximize Compatibility then briefly toggled "Allow Others to Join" off and on.
If that is not your problem then it sounds like a bug, and nothing that can be fixed in settings by an end user.
Some options:
If you are trying to connect both your gaming PC and Meta Quest 2 through the iPhone Personal Hotspot you may have issues with 2.4GHz being too slow for Air Link streaming. Even at 5GHz I would not really recommend using Personal Hotspot and would recommend a dedicated wireless router instead.
