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Slow WiFi speed with iPhone Xs Max

My 2018 iPhone Xs Max 256 is getting much slower internet speeds when connected to my Home wifi. I use Spectrum Internet and normal wifi speeds in excess of 100 Mbps on all of my mobile devices (iPhone X 256, iPad Pro 10.5) and 2018 Mac Book Pro. They all get about 110 Mbps, but the iPhone Xs Max is only getting about 55 Mbps or slower, sometimes as low as 7 Mbps.

I use the app called Speedtest by ookla. All tests are done sequentially at same time of the day, in the same room, about 10 feet away from the wifi router.

There's definitely an issue with the iPhone Xs Max. I notice the problem when I read the LA Times e-edition every morning. I've been reading the e-edition daily for over a year. The pages would load instantly as I swiped right-to-left when I used the iPhone X. Now, with the iPhone Xs Max, when I swipe to open the next page, I have to wait for the page to load and be in focus. It's frustrating! Has anyone else noticed a slower speed? Is there a fix? Has a case been opened on this issue?

iPhone Xs Max, iOS 12

Posted on Sep 27, 2018 7:08 PM

Best reply

Gary Shockley Author

Level 1

16 points

Posted on Sep 28, 2018 11:22 AM

I figured out the cause for slower speeds. I have a dual band router (2.4GHz and 5GHz). The 5GHz band is faster but has a shorter range. The iPhone was using the 2.4GHz band while the iPad and MBPro were using the 5GHz band. When I changed the iPhone Xs Max WiFi connection to the 5GHz band the Speedtest resulted in 117 Mbps. I'm happy now. The WiFi may automatically switch back and forth between 2.4GHz and 5GHz bands. If I want to read the e-edition of LA Times or do any internet-related activity, I will make sure the iPhone is connected to the 5GHz band for fastest speed (as long as I'm not too far from the WiFi router. The 5GHz band is strong in most areas of my home.

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19 replies

ZiqiNiu

Level 1

8 points

Sep 30, 2018 5:50 AM in response to SumUser

I have the same problem, but I can’t control my wifi as I’m using my accommodation’s shared network. How can I ban my iPhone Xs max from using the 2.4 signal?

Oct 3, 2018 8:46 AM in response to stotan7

Have you tried to Forget the 2.4 band in your WiFi settings on the iPhone? That should work.

Oct 3, 2018 8:59 PM in response to Gary Shockley

Also found out if you uncover the bottom of iPhone Xs max with your hands, where the antenna bar is, the phone’s internet seems to speed or load up faster. Hope this helps!

yourmomm

Level 1

4 points

Nov 10, 2018 10:50 AM in response to Gary Shockley

I fixed mine by going to Settings>General>Reset>Reset all network settings. It’s works now

Slow WiFi speed with iPhone Xs Max