iPhone 15 WiFi painfully slow.

Unfortunately many will not have the option to disable this feature if they have a modern, provider-issued modem. I’m glad you found a solution.

I’m currently testing a workaround of turning off 6e capabilities after connecting to my WiFi. If anyone else would like to test this with their 6e capable router please let me know.

Now that you bought yourself an iPhone 15 set it and forget it. The next steps of this troubleshooting will help you resolve any issues you have

First find out narrow down your information turn off your cellular data when you’re at home and just use your Wi-Fi. Don’t let iPhone determine what your best signal is. Turn it off. Use it for three minutes do a Speedtest if you find yourself at a very slow speed. It should be higher than your cellular data no comparison so if it’s slow you need to go into your Wi-Fi modem and in there you’ll find different channels. Mine was channel 8 I switched it to 11 hit speed test and I was 400 MBits per second. You need to find out what channel your modem communicates with your iPhone 15 the best there are a lot of reasons for this like interference etc. but we’re not gonna get into that here.

You probably know this next drill, but I’ll spell it out anyway turn off your Wi-Fi turn on your cellular wait two minutes go outside your house and do a speed test. If this proves to be a problem you need to call your cellular provider and if they won’t help you, you need a new cellular provider, unless you live in the woods and you inherently don’t have good coverage

adhering to the rules of the community. I cannot mention my cellular provider, but I called them and they kept telling me and making me feel like it was my problem. The phone I bought where I live it was all me then I went and got another cellular provider without canceling the first one just put the new Sim card in to the new provider, and I thought my iPhone would overheat it was going so fast, so I called my original provider and canceled. And now, if you’re gonna ask my provider, can you hear me now the answer is gonna be no cause I’m no longer with them

I purchased 2 new Titanium 256 pro phones because my husband I always get new phones together and he lost his phone on the highway. Long story short…. I hate this 15 titanium. I have more than enough space on the new phone. However, searching google, pullubg up photos at google documents is an unbelievably slow. Also, when I am watching a you tube video is so slow to play and pauses and even stops. I hate this iPhone phone product. I am a iphon used with 6 devices but this Titanium is not worth the investment and not a reflection of typical apple products. Hate it and ready to change.

I don’t know how you found this seemingly obscure setting or how anything to do with Safari affects WiFi speed, but I toggled this off on my 15 Pro and the difference was indeed night and day. From d/l around 114 Mbps to 457Mbps, and upload from less than 1 to over 40 Mbps, so thanks for that! Cheers.

I had the same problem. After multiple calls to Cox it was revealed that my router (PW8, Brand: TECHNICOLOR

Model: CGM4981COM) defaulted to 2.4 GHz when I set up the network. I set up another network at 5.0 GHz. Problem solved. This is how I checked on my MacBook Air-Click on the WiFi icon in the top nav bar while holding down the Option/Alt key. 3. Look at the channel information written in grey text. It will say 5 GHz or 2.4 GHz.

Interesting. I recently upgraded from an iPhone 12 to an iPhone 15 Pro Max.

I had this problem recently with my old iPhone 12, and just assumed that my old iPhone was nearing the end of its useful life (the battery was also not lasting as long as it used to), so a possible ageing hardware issue. I never got to the bottom of this, as I planned to upgrade, which I assumed would cause the slowness issue to disappear.

Not so: the new phone suffered from the same problem, so I came here for advice, and tried every suggestion - all to no avail.

Having exhausted every possibility, I took the problem to an Apple guru in the Genius Bar of my local Apple store. He had not seen this before, and tried all the (to him) obvious tricks to increase the speed without success, then he stripped everything off my phone and completely reinstalled the iOS - which worked properly straightaway. My phone is now operating at maximum possible speed, both on WiFi and data.

We still don’t know what the problem was, but the reinstallation of the OS certainly solved it so it is presumably software-related, especially as it also occurred on my old iPhone 12.

And restart your iPhone. Also, mine appeared to already be set to not connect, but it was also using my password manager VPN. Dashlane doesn’t have this setting, so I changed it to another VPN and then set that one to not connect on demand. Restarted the phone and the speed is back to normal.

I had a similar issue when I got my new iPad which uses the same technology as the iPhone 15 Pro does. It may have something to do with WiFi 6E. You can try to turn off the WiFi 6E and see if this makes a difference for you. Goto Settings > WiFi and click on the blue “i” on the side of the WiFi that you are connected to. Once you’re in there you can find WiFi 6E and select it from automatic to off and see if this makes a difference for you. It made all the difference in the world on my iPad. That being said, it wasn’t the iPad itself, it was most likely a setting or something in my router that didn’t work well with the iPad but did with other devices as the WiFi 6E works fine with other routers. My router was included with my Xfinity Internet and just didn’t play nice. I have since moved and use a different provider and their router works fine with the WiFi 6E. I don’t know what it was with that router and other routers by them as well but when I left it works fine with the new one that I have with the different provider so I was never able to see what would happen when I got the iPhone 15 Pro Max because I was out of there by then, but I can tell you that I did see that with guests that had the iPhone 15 Pro when they would come over their phone would do the same thing and turning off this setting it worked fine.

I 100% agree with you. I am doing the same thing so frustrated that I just don’t even try to access the website. I went from a basic iPhone to the iPhone 15 and I am very very very disappointed. Maybe I should change to an android, my son says they’re great.

OK everyone, I tried every suggestion in this post. I finally though fixed it.

go to Settings

click Wi-fi

Choose the network you are using and hit the blue i circle on the right

If you have Private Wi-fi Address "on", shut it off...wait a minute, click it back on.

BOOM - worked amazing for a while, then slowly it crept back to crap again.

Back to the drawing board.

Is Apple going to do something about this??? I upgraded from IPhone 10 to 15 and it straight up feels like a downgrade with this WiFi issue. I disconnect and immediately get better connection. I have the highest internet speed available, it’s not my WiFi.

Have exactly the same issue

Hello JMAN712,

Thanks for the update 😀

This didn't change speeds for me

You are a superstar!