WiFi Speeds (iPhone 12 Pro Max)

I posted some time back that my 12 Pro Max gets about half the speed as my old 10 pro max. I have an apple Time capsule with both a 5 ghz and 2.4 ghz network. My MacBook Pro and IPad get almost twice the speed as the 12 Pro Max. All the suggestions from this thread have not improved the performance.

People here were complaining of slow WiFi speeds. The 12 Pro Max will do mid-500 Mbps down all day on 802.11ac routers.

So few people have 802.11ax/WiFi 6 routers (or clients for that matter) it's not really worth worrying about at the moment.

I went into Apple within my year window. And was denied a replacement phone. Just an FYI. Not to mention I’m not exactly sure what a replacement phone would do, they won’t have met made any changes that would make any difference at this point. Definitely disappointing. The best we can hope for is that as more and more people complain about it, it will become a bigger and bigger issue for them and then they may actually do some thing. I was told when I was in there that they probably wouldn’t be marking it as high priority since the Wi-Fi still works.

I have iphone 12 pro max which after updating ios 14.5 i started having trouble connecting to the wifi, my other devices are working fine the problem seems only to occurs on my iphone. The wifi speed is significantly slow almost 1 to 3 minutes just to load a low level website.

Dogcow-Moof,

What Router/AP are you using that you don't have these issues?

I myself am using Unifi Equipment. Unifi NanoHD AP connected to UDM-Pro and I do not get the speeds you show. I get 400 down & 20 up from my ISP. I realize I will not get more than 400 but I can verify that I am connected to the AP via 5 Ghz.

I can only get 200 Mbps down. Up is fine as it registers 23 Mbps.

My modem firmware is 1.80.02 running on the latest iOS 14.7

Exactly, it didn’t make any change to my router, it did toggle wifi settings on 1 out 2 new iphone 12 pro max which had the issue. Same wifi ssid/router worked fine at the same distance for other iphone and other devices earlier as well. Clearly it’s a problem with iPhone and not the router unless you have an explanation on how can the same router work well for everything else at the same time and without making any changes to the router, problem gets fixed for the problem phone.

That's likely an issue with your Wi-Fi router or your 5 GHz signal is notably noisier than the 2.4 GHz band and such a connection would actually give you lower throughput and/or there would be more retransmissions.

hi dogcow . I find it very interesting that so many of us that have 500-1000mbs internet rarely see any speeds where they should be (in the 480+MB’s range) especially when even the other devices on our net work that have slower processors like iPhone 10 iPhone 11 and Apple TV , even dell laptop are able to get those rates . So why do so many pro max 12s report they are unable to get them? And I don’t think reception issues are limited to WiFi. The other iPhone 11s in our household get better lte than 5G service on 12 pro max, using our same provider when we are traveling in same car trying to do same functions. I’m pretty sure mine is a lemon with no way to prove it since it’s only half impaired . I use the Apple leather case and have tried removing . Worked with Apple support for months gave up trying to collect evidence. Since we were in middle of pandemic with little chance of trying any other 500mbs+ networks - there are a lot of public high speed options to prove its not your home router

There are a lot of factors involved, but as I showed earlier, it's not the phone itself that is the limiting factor, it's usually a router issue or something else on the network.

As an example, the Apple Time Capsule 802.11ac can't pass route data to/from the Internet any faster than about 540 Mbps even via a wired connection, the internal hardware isn't fast enough, and even then you are still limited by how the remote site is connected to the Internet and traffic between them and you.

I have the same issue. I am getting almost the half wifi speed compare to my iPhone XS Max and three other Mac book pros.

I have not changed any settings at all. Anyone who can explain this?

That is bad luck. Older iPhones don’t have the issue. This is definitely a iOS 14 bug specifically for all of the iPhone 12 variants.

I even did a test with a spare Linksys router I have and same results, it’s definitely the phone.... I’m hoping the test I did with Apple Support lead towards a fix.

I’ve just sent them this link via the Feedback application and also sent WiFi logs...

more people should do that until next IOS is released!

Thanks for letting us know! can you share the change log using another device that you haven’t updated that with yet?

iPhone 8 - 395Mbs

iPhone 12 - 161Mbs

.....no change