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iPhone 15 Pro iPhone 15 Pro issues with 5GHz WIFI Networks

G

guitarguy316

macrumors 6502
Original poster
Sep 5, 2010
375
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There’s definitely something wrong with connections to 5GHz networks. Both of our phones are having an issue where WIFI shows full bars but there is no connection. If I switch over to my 2.4ghz network everything is fine in the same spot (albeit lower speeds). iOS 17.0.3 did not fix it. We previously had iPhone 12 Pro phones and never had any issues with 5GHz bands.

I sure hope this is a software issue and not a hardware problem as tomorrow is the return deadline.

This seems to be a larger problem as there’s a bunch of responses to having similar issues on Apple’s website.

iPhone 15 Pro Max Wi-Fi Issues - Apple Community

discussions.apple.com discussions.apple.com
 
dave006 said:
If it indeed turns out to be a hardware issue it will be replaced under warranty.

Dave
Click to expand...
It seems like a lot of people are having this issue so it would be a widespread hardware issue...which then means what? Apple fixes in the hardware in future production runs?
 
I have an Eero+ setup, and 5ghz is working fine for me... from skimming through that thread you linked to, and one on Reddit, it sounds like it's just with certain routers, and mainly when using 160mhz width?
 
Cellular connectivity is also still a major concern for some owners . For the record I had no wifi issues with my 15pro with my TP Link wifi 7 router
 
macphoto861 said:
I have an Eero+ setup, and 5ghz is working fine for me... from skimming through that thread you linked to, and one on Reddit, it sounds like it's just with certain routers, and mainly when using 160mhz width?
Click to expand...
Mine doesn't even allow 160 bandwidth and we have the issue with 5GHz bands.
 
guitarguy316 said:
Mine doesn't even allow 160 bandwidth and we have the issue with 5GHz bands.
Click to expand...
Well, hopefully it's just a software issue that can be easily remedied by either a router or iPhone update. I always hate these kinds of things, because I can picture the router manufacturer saying, "it's an iPhone problem... Apple needs to fix it", with Apple's people saying "the router is the problem." Of course, if you have a bunch of devices that all have no problem at all connecting to a particular router's 5ghz band, then a new device comes along and is unable to, seems logical that the problem is with that new device.
 
macphoto861 said:
Well, hopefully it's just a software issue that can be easily remedied by either a router or iPhone update. I always hate these kinds of things, because I can picture the router manufacturer saying, "it's an iPhone problem... Apple needs to fix it", with Apple's people saying "the router is the problem." Of course, if you have a bunch of devices that all have no problem at all connecting to a particular router's 5ghz band, then a new device comes along and is unable to, seems logical that the problem is with that new device.
Click to expand...
It's definitely an iPhone 15 specific issue as we were running our old iPhone's on iOS 17 just fine...iPads work just fine as well so it's not an iOS issue either. Also given that it seems there are similar issues across various router brands based on that Apple discussion I linked, it seems to indicate the phone itself is the culprit or the iPhone 15 specific software.
 
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I think you will need to pinpoint the issue here. What exactly did you set your 5ghz? What channel width? While the link is about 160hz, are you even using that width or could be another issue? What is the channel (lower or higher than 100)? Are there other Wifi nearby using the same channel that may be causing some interference? Everyone's wifi is set up differently and many different brands/type of routers. Some devices have trouble connecting to WiFi 5ghz channel over 100. If that is the case, set it to lower than 100 and test. Whenever you figure it out, it would help others know and even these manufactures know what is the cause.

Have you restarted the router or iPhone?
 
Last edited:
Here's one answer for you, from that thread:

I'm having the same issues with my new iPhone 15 Pro. However, my router (TP-Link Archer AX5400) was already configured to 20/40/80, without the 160hz option toggled on.

My phone varies between accepting the WIFI and rejecting it. Once it's connected it sometimes works perfectly and sometimes not at all. The phone purposely disconnects, and thankfully 4G/5G is good enough for now...

One thing worth looking deeper into is the "Smart connect" feature, or whatever it might be called by your router manufacturer. The feature means the 2,4GHz and the 5GHz bands are merged into one (for the user) instead of broadcasting both and the router passes the device over between the two when needed. I have this feature activated and someone said "once I toggled it off, the 5GHz band could be used without problem, at 20/40/80"

I have not yet tried toggling it off, since it affects all my devices, but still want to contribute to the thread, that it might be worth trying, in case you're in my situation.
Click to expand...

I always hated "smart connect." So try turning that off, or just go with 5ghz and turn off 2.4. See if that helps. Then you have the beginnings of both a very solid answer, and a temporary solution.
 
Banglazed said:
I think you will need to pinpoint the issue here. What exactly did you set your 5ghz? What channel width? While the link is about 160hz, are you even using that width or could be another issue? What is the channel (lower or higher than 100)? Are there other Wifi nearby using the same channel that may be causing some interference? Everyone's wifi is set up differently and many different brands/type of routers. Some devices have trouble connecting to WiFi 5ghz channel over 100. If that is the case, set it to lower than 100 and test. Whenever you figure it out, it would help others know and even these manufactures know what is the cause.

Have you restarted the router or iPhone?
Click to expand...
Yes rebooted both and reset network settings. If you’d read the link to Apple, there’s hundreds of posts with same issues. It can’t be everyone’s router is setup wrong for an iPhone 15. Again, everything worked perfectly on previous gen iPhone running the same iOS 17 software.

As for router, it does not even have 160 bandwidth, only 40 or 80. My 2.4GHz seems to be okay…the only issues people are having is with 5GHz networks.
 
I think this issue has been fixed (or at least improved by 17.1 beta 2).

When I was using 17.0.2, my WiFi6 enabled 5G Wi-Fi (TP-Link Mesh System, with a fixed channel at band 157 and bandwidth at 80MHZ), the connection with the 15PM was unstable, unlike the stable 14PM. I had to use the 2.4G for stability.

Since 17.1b2, the connection seems stable, but latency is somewhat bad, for example I play Genshin Impact and previously have a 40ms connection, now it can spike to 200ms under the same configuration, mostly stable at 120ms.
 
15PM iOS 17.0.3 and whenever I get home from going out, I need to manually toggle wifi off and then on to connect to my home 5GHz wifi. Driving me nuts.
 
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I’m using 5Ghz WiFi with my Asus router and never had this issue with the 15 Pro Max.
 
I have a 15PM with the WiFi issues (5ghz). Whenever I enter my WiFi area it will connect and display a strong connection, but data will not work until I cycle it on/off. I have zero issues with any other device.

For reference: 2 x ASUS RT-AX86u’s in access point mode w/ separate 2.4/5 ghz SSID’s.
 
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