WiFi Speeds (iPhone 12 Pro Max)

Anybody else having slow or inconsistent WiFi speeds on iPhone 12 Pro Max? I know it’s not my WiFi because all my other devices work as usual including my iPhone X which is still have/upgraded from.

iPhone 11 Pro Max

Posted on Nov 13, 2020 6:14 PM

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Posted on Jan 10, 2021 9:42 PM

I finally solved the ridiculously slow wifi speed (just got my iphone 12 pro max today).

Turns out my VPN was kicking in while trying to configure/test everything else out.

Bottomline: I had to use cellular data to download the VPN (because it was only partially downloaded), then once it was downloaded, i disabled it. Then.... voila... wifi speed was back to "crazy fast"

Just a thought.... look at your VPN (to if you can disable it)

worked for me.

352 replies

Feb 10, 2021 10:02 PM in response to Dogcow-Moof

Maybe I should move to Denver. As noted above, I’ve basically eliminated the router as the culprit. There’s no way other apple devices can fetch higher speeds and the iPhone 12 Pro Max can consistently fall way short (under 10% of the what my WiFi plan entails). I understand there are nah variables at play here, and your screenshot is exactly what the iPhone SE gets on the same network.

May 19, 2021 10:04 PM in response to Sachihiro

I am facing the same issue since I got my new phone. I am having an iphone 12 pro. And the wifi speed on the device is very slow. All other devices work absolutely fine on the same wifi network. Have been facing this issue since 5 to 6 months now and its getting irritating. The phone works fine on mobile network the issue is only with wifi network. Hope this is fixed with some updates soon.

May 23, 2021 11:14 AM in response to Dogcow-Moof

You e been writing a lot about how we don’t know how to use our phones and how it’s not meant to be fast. It’s irritating. All I know is that my husband’s older iPhone gets better speeds than I do. And that in many places I am better off turning off my WiFi off and going cellular because the WiFi is too slow and times out. I would not buy this phone again if I had a choice.

Aug 9, 2021 7:16 PM in response to Dogcow-Moof

As far as cellular signals, support for different LTE frequency bands may be all the difference.


For example, for the iPhone 12 Pro:


FDD‑LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 66, 71)


For the iPhone 11 Pro:


FDD‑LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 29, 30, 66, 71)


So as an example, if you have an iPhone 11 Pro, you may see no issues whatsoever using the 11 Pro but no signal with your 12 Pro if the base station controller assigns your iPhone 12 Pro to use FDD-LTE band 28 or 32 and the tower isn't properly configured/optimized for them.

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WiFi Speeds (iPhone 12 Pro Max)

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