iPhone 15 pro and pro max too slow on wifi connection

Since apple wont pay anyone the time of day on this which is triggering, I have pretty much tried everything (full phone reset and everything else) until I started troubleshooting my network settings on my router. I suspect this is a combo of IOS and network compatibility issue. I was able to fix my issues by changing my WiFi channel on 5ghz and 2.4 GHZ bands. It almost seems as if there is network interference. The issue is clearly with the phone hardware / software but had to adjust router settings in order to get a useful network connection. No one should have to go through this much trouble to get a brand new phone to use WiFi, get your act together and support your devices Apple. If you’re not tech savvy you may want to reach out to your to your internet service provider for help or YouTube.

I found a solution for iPhone 15 super slow wifi.

I think the iPhone's problem is preferring for some reason 2,4 GHz over 5 GHz from your home modem.

New modems have usually band steering mode. This means your appliances can choose wifi frequencies automatically from your home wifi network.

2,4 GHz has a longer range and slower speed and it is compatible with most electronics

5 GHz shorter range and higher speed and for newer electronics

If we create 2 separate wifi one for 2,4 GHz and the other for 5 GHz, and let the iPhone connect to only 5 GHz, speeds go instantly higher.

• Find your home modem and connect to the admin page in your internet browser.
• You will find the address and password at the bottom of your modem
• The address is 192.168.x.x. In my case 192.168.0.1.
• In the admin console under WiFi, enable networks 2,4 GHz and 5 GHz
• Name them differently and apply changes
• In iPhone wifi settings ignore the old wifi network, and connect only to a 5 GHz network and that is it.

Video how to do it!

I resolved my issue yesterday by first deleting the google one vpn, did not even know it was there when I installed google one, resetting network settings and rebooted my router/modem. It’s blazing fast now.

Hi - I had these same issues on a 15 Pro Max - in addition to rolling Wifi drop every 30-45 seconds. I found some hints on this forum, and figured out this is somehow linked to the Wifi 6E on the 15 Pro.

The solution of turning WiFi 6E Mode off solved it.

Go to: WiFI > tap on "i" on the current selected WiFi network > toggle WiFi 6E Mode "off".

bedibalbir Said:

"iPhone 15 pro and pro max too slow on wifi connection: iPhone 15 Pro and IPhone 15 Pro are too slow on wifi connectivity. Photos takes more time to load, uploads take longer time than usual. on cellular 5G connectivity, everything is fine. switched from iPhone 12 Pro, never faced any wifi slowness ."

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Troubleshooting Lagging iPhone WiFi:

Start Here: If your iPhone, iPad, or iPod touch won’t Connect to a Wi-Fi Network - Apple Support

Other Thoughts:

A. Clear Temporary Internet Files:

If Safari is slow, try clearing out your Temporary Internet Files: History, Cache, and Cookies. Go Here: Clear your Safari browser history and set up content blockers on your iPhone, iPad, or iPod touch

B. Disable Cellular:

Try disabling Cellular, and using Wi-Fi instead, seeing if that makes all the difference.

C. Try manually restarting your iPhone:

1. Go To: Settings
2. Select: General
3. Scroll to: the Very Bottom
4. Select: Shut Down
5. Slide Finger: to the Right
6. Wait: 30 Seconds
7. Power One: the iPhone
8. Try this Once More

D. Reset All Network Settings to Default:

Example of items that will be reset: (Wi-Fi Passwords, VPN Connections, etc)

1. Go To: Settings
2. Tap: General
3. Tap: Reset
4. Tap: Reset Network Settings.
5. Enter: [Your Passcode]

Turning off Private WiFi worked great for me. Go in to your network settings and turn off private Wi-Fi.

I had same issue with iPhone 15 pro max over wifi, and after upgrading to an entry level wifi 6 router tp link ax4400 the speeds are actually looking good 5-700 mbps for gigabit internet. I’m curious if everyone having this problem is not using a wifi 6 router or at least somewhat newer wireless router.

I had the same problem on my iPhone 15 Pro Max ios 17.3 when it connected to the Wi-Fi network.. I made a comparison with my old iphone X ios 16.7.5 same network

result :

Note : I have reset the network settings on my iPhone 15 Pro Max and the internet speed is now fast.. I do not know if the issue will return later.

Turn off private rely on iCloud+ as it’s causing it. Hope there’s a fix soon as it’s a good thing to have.

Thanks, i can confirm that the workaround with Turning off private wifi-address works. Anyway i assume it has to do with the Wifi. I hope Apple will fix that asap.

I think I found the solution which is by turning off the “Private WiFi Address”.

Settings > WiFi > “network your connected to” > Turn off the Private Wifi Address option.

hope this works on your end too.

Yup.. same issue with me still.. but better in ios 17.4.. from old version…

my noted this issue appear if using multiple WiFi network on iPhone 15 pro max … if you saved any wifi network on your iPhone 15 should be deleted all .. and connected with one only … until apple fixed this problem 😔

im using iPhone since more thin 10 years maybe … im never see like this issue with any Apple device

Have you tried Resetting Network Settings and connecting back to your Wi-Fi?

Did you go as far as restoring the phone using a Mac or PC, setting up as new and seeing if the issue persists?

If you did get that far, I'd contact Apple to have them run diagnostics on your device, it's just odd that two brand new devices would have the exact same issue.

bedibalbir Said:

"iPhone 15 pro and pro max too slow on wifi connection: iPhone 15 Pro and IPhone 15 Pro are too slow on wifi connectivity. Photos takes more time to load, uploads take longer time than usual. on cellular 5G connectivity, everything is fine. switched from iPhone 12 Pro, never faced any wifi slowness ."

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Does your iPhone Feel Hot?

Overeating iPhone and draining iPhone battery is a well-known issue. Power is a big concern for iPhone series compatible with iOS 17. Question is: "Just how many people have actually reported this to Apple?" So, this overheating may be making this occur.

Report this to Apple...

Do your Part: Provide Apple with feedback on this, letting them know about this issue.  Apple may not get back to you directly, but the more feedback they receive on this, the more they will know what is occurring, and what bug fixes to include in updates to come. Apple will know nothing of this, if you don't report it to them.

1. Go Here: Feedback - iPhone - Apple
2. Select: "Bug Report" for the "Feedback Type"
3. Comment: that this all began after installing an update. Include the URL of this thread
4. Proceed from there as necessary