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SerioGA

macrumors newbie
Original poster
Apr 26, 2023
4
0
Prior to the update everything was working fine with ios15, now after update to ios16 I started having problems with the WI-FI 5ghz. As I understood this problem appears on devices iPhone SE 3rd, 13 and 14. The problem is in Wi-Fi channels. Wi-Fi works totally fine with channels 35-48, however channel 149 and up iPhone SE 3rd doest detect my Wi-Fi network.

Seems like devices that updated to latest update of iOS seems to have this problem. Resetting the devices, resetting network settings, resetting the phones doesn’t help.

I also checked on the iPhone 11 ProMax, iPad Pro 3rd on these devices there is no such problem with WiFi in iOS 16, they see all the WiFi channels of the router at 5Ghz from 35-165 see the WiFi network, I also checked on the iPhone 12 there is no such problem in iOS 16,

I checked on my iPhone SE 3rd device, this is a WiFi problem when you change channels to 149 and higher in a 5Ghz WiFi router. Why do not many people encounter this WiFi problem? Basically, most routers have automatic channel selection from 35-165, so only the users that set channel 149 and above can see the problem in iOS 16, I checked on other iPhone 13,14 they also have this problem with WiFi, the problem is in iOS 16 firmware.

And what about those devices for which you can’t change the channel there, by default the device’s channel is 149, I have a Multimedia Pioneer zf9350bt that works with CarPlay via WiFi and it has a main channel of 149, I can’t connect to it on an iPhone because there is no Wi-Fi network, I checked that it works with android phones without a problem and sees channel 149.

In the Apple community I created a post well there help can't with this case.

Have you had such a problem?
 
Cant really answer your question. But my iPhone 13 is using 5GHz . Maybe because I am using an Eero Pro 6 router?
 
Most likely that the router is currently not working on channel 149 and higher if you have an android, you can check this using the application to scan Wi-Fi networks
 
Correct, no android devices. But numerous other devices that aren't , some on 5GHz, some on 2.4.
 
So that's the problem, that there are Apple devices that I listed and they have a problem with Wi-Fi channels 149 and above, so most likely you don’t have this channel installed at the moment, so your device works fine if these are channels from 35 up to 48
 
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