WiFi Speeds (iPhone 12 Pro Max)

My 2 month old 12 Pro Max delivers 98mbps from the Xfinity 100mbps service connected to a WiFi router.

Definitely suggest you go direct to Apple Support if your device is suspect.

It’s not a hardware problem. The iPhone is connecting to the strongest, but not necessarily the fastest signal. It’s a feature, not a bug.

Hi I'm also having the same poor WiFi speeds on my iPhone 12 Pro Max.

My 2015 MacBook Pro on 5G WiFi band is almost twice as fast.

My MacBook Pro recorded 49Mbits down and Iphone 12 Pro Max, 24.1Mbits close to half on the 5G Wifi band. My router is wireless n, but sufficient for my ISP plan in Australia.

I've also upgraded the OS to 14.2.1

My previous Iphone X before I upgraded also achieved similar to MacBook Pro.

It would appear that we have a common problem for such a fast processor and the latest tech it is more than a coincidence that the WiFi speeds are half.

No good enough for such an expensive phone!

Yeah my iPad Pro and iPhone 12 mini have this issue but not my other devices. Seems to be an issue with the AX Intel wifi cards in the Apple phones if I took a guess. Maybe it’s the cards themselves needing a firmware update or a software update within iOS 14 for better compatibility/performance with those cards.

Wife’s and my iPhones 12 Pro Max has been having wifi issues connecting to my google mesh network it tells me it has full bars but no internet. I have a iPhone 7 and it works where my iPhone 12 pro mas doesn’t. iPhone 7 has a longer range coverage than the iPhone 12 pro max unbelievable. Considering returning devices.

all my other devices worked and work just fine !

but I haven’t seen 700mb on the 12 pro max since I got it !

now I see it but, it’s not constantly.. sometimes it just drops while making a speed test ...

I think there is still something with the power consumption, power/battery management, maybe even cpu🤷🏻‍♂️

Yep, nothing changed .. I think it’s even worse now ...

sometimes watching YouTube from phone to Samsung qled doesn’t want to connect, 4K keeps loading and even Airplay to same tv seems unstable... things that never happened before 🤷🏻‍♂️

No sooner than I wrote that update, i retried my test in my office and saw amazing 480Mb/s suddenly. (nothing physically changed that i know of ) I did reboot router and satellites last night. But coincidently I see now a 14.3 update is available for download to my phone. I'm going to wait to update though until i can repeat the issue more frequently to know what is fixing it.

thans WildClyde. That seems like most likely related symptom for me too. I have mesh and all things now being equal and repeated attempts. Notice differences moving around house and trying to force rejoin to different satallites all on same ssid. In one area of house things improve. And one time I even saw 490MB/s. It’s not a complete show stopper for me and i no longer have my prior phone to go back to. So hoping they will fix. 14.3 didn’t fix.

They shouldn’t conflict (they don’t in any other models). The frequencies aren’t that different; 2.4 GHz for Wi-Fi, 2.6 GHz for BT. And the 5 GHz is twice the middle frequency of the low band and BT, and I’m sure the microwave designers took advantage of that (I would, if I was still designing microwave systems). I don’t think the problem is in the chip, but it could be related to power consumption of the chip.

But the fact that the Wi-Fi problem occurs whether there is a BT device connected or not would argue against that being the issue, because BT is not transmitting when there is no device connected.

Not the case for me at all. I’ve split my wifi between 2.4 ghz and 5 ghz connections. Even connecting to only my 5 ghz connection I still get a slower speed. So I’m still hopeful that a software fix for iOS will address the issue. It’s definitely a problem with the phone software. I have the iPhone 12 Pro Max.

It seems like a lot of people have devised multiple methods of getting to the same conclusion. The common denominator here are the devices (12 Pro Max in mine and a lot of other cases) and the fix has to be made at the device level.

iPhone 12 Pro Max->Reset Network Settings-> Switched WiFi "off"-> 5G Data Roaming set On-> Use More Data on 5G set.

Solely connected to 5G Verizon Broadband-> 4.1mbps.

Switched to Wifi 5Ghz router bandwidth + Cellular ->> got 100mbps

This device is less than 30 days old. The camera technology is STELLAR...."but" why is the Broadband reception so poor?

& Please spare me the derogatives about Verizon.

Mrsmrock wrote:

Well at least it’s not just me. We pay for 1Gb service and consistently get >700 mbps speeds across our WiFi on all devices.

Unless you have a brand new WiFi 6 router and all your other devices are WiFi 6 and within ten or so feet of the router, you are not seeing 700 Mbps speeds unless your speed test is lying to you.

For most people with 5 GHZ WiFi and Gigabit service you will in most cases see no more than 600 Mbps down over WiFi compared to 940 Mbps or so via a wired connection.

Something like this is more typical:

Hi , having same problem iPhone 12 Pro and iPhone 12 getting slow WiFi connections around 140mbs vs iPhone XS and X , iPad around 485mbs on my Linksys mash network , I did also all the troubleshooting like network reset on both iPhones and on my wireless network , rebooting the cable modem and not much change for me ......