wifi issues with Iphone 11 Pro Max

My iPhone Pro Max has problems with my home WiFi. My iPhone X has 250mbs +, yet my new iPhone struggles to get 38mbs. Running side by side. I reset Network settings, which helps for a short time, but back to slow WiFi speeds.

• Decided to do a speed test on my new iPhone 11 Pro Max. And I was like WTF? I had just upgraded from an iPhone 8 plus which was a rocket on my wifi. Went thru the previous results and found the best result was Ping 19 , Jitter 1.4, 600Mbps down, 20.9Mbps up. Results could be from 496Mbps down, 516Mbps, 592Mbps, up to the first/best one I previously stated and consistent 16Mbps to 21.0Mbps up. So I expected the same or close there about. Imagine my surprise, when for 3 tries the speeds were 331 up - 20.6 down, then 283 down, 21.0 up, and lastly, 330 down, 20.6 up. My Mac Pro Dual hex core xeon cranked 653Mbps down, then 21.1 up beating the last fastest (646Mbps down , 20.1 up). This is the speed I used to get on both devices. My Internet Plan is 600Mbps down, Unlimited Bandwidth. I'm only getting 1/2 the speed I should be getting. Updated wifi on the 11 Pro Max, and the 8 plus had a/c wifi but yanked down as quick as the gigabit ethernet. I agree with the previous posters that something is up. Hardware maybe, the ( 802.11ax Wi‑Fi 6 with 2x2 MIMO ) in the 11, the ( 802.11ac Wi‑Fi with MIMO ) in the 8 plus ? Just seems weird & at the expensive, but worth it price I would still like an answer or a fix/solution.
• Cheers

There definitely is a problem.y network is very fast and stable. All other devices in the house work fine on my network but my 11Pro Max frequently gives me connection errors. I hope that this issue is addressed soon.

The new iPhone 11 max doesn’t work on 5Ghz wireless internet! No trouble shooting suggestions have worked nor my call into Apple! I’m planning to take it back for a refund. How do you release a “new” device that only works off 2.4Ghz internet (older slower technology) and won’t work on a 5Ghz wi-fi network (newer much faster technology)? Instead of me using the 11 Pro Max on a 5Ghz wi-fi network with over 400 meg speeds I have to use it on a 2.4 GHz network with 60’s meg speeds. Absolutely ridiculous.

I can’t use AirPlay on my 11 Max Pro, video is jerky. Always have to keep switching off WiFi as it shows wifi connected but no internet or super slow. IPhone XR, Samsung Galaxy S10, iPad Pro 3, Dell XPS 15 laptop all do not have this problem in same location of house/same wifi router. My 2012 Mac mini also wifi was unreliable but I switched it over to Ethernet cable.

I'm well aware of how DNS works. However when I changed this it improved. Although it seems just changing it was enough , not necessarily what I changed it to as I changed it back to what DHCP provides then it kept working. Keep in mind the issue we are talking about is internet speed while on Wi-Fi, not necessarily Wi-Fi speed. DNS resolution performance can impact internet browsing speed. So just the act of changing it appeared to fix something. No other device I have has any Wi-Fi problems only the 11 Max Pro, it's the worst wifi I've ever had on any device in my life. I will try later to see if I can capture packet traces from a router to capture more detail what is going on when it breaks.

I’m also having the same problem, however I found a simple method that helped me

go to settings>Mobile internet(or data) scroll down and turn off WiFi assist.

i was able to stay connected to my 5ghz WiFi router with no problems, although signal isn’t as good as my iPhone X but the speed was relatively the same so I’m happy for now:

hope this helps.

another option would be to go to privacy settings and turn off WiFi network.

good luck

I am also having trouble with internet connection. It’s really slow and very frustrating . I was booking some flights yesterday on my 11 pro plus and it was taking forever because of the slow wifi. I jumped on my iPhone 10 and booked the flights why I was waiting for it to load. Come on apple pick up your game.

Please do keep us posted and see if it’s just a bad batch or if changing to a new phone really helped solved the issue...

however I received my iPhone last week Monday... so should be from the same batch.... or could it random and happens in every batch....

Same issue here: My iPhone 6 and my wife's iPhone 8 were working fine on our home wifi network. We both upgraded to the iPhone 11 Pro (me from the Apple store a week ago and her from a Verizon store yesterday), and both began experiencing wifi issues immediately. It seems the wifi antenna is significantly weaker than the previous phones. Doesn't hold a 5ghz or 2.4ghz very well. Falls off frequently and starts using LTE data. I'd love this to be a software issue that can be resolved, not excited about getting two new phones and setting them up again.

Thank you! I've been having this problem since I bought my phone yesterday and have been having a devil of a time getting it to connect to wifi. I deleted the AT&T Mobile Security like you suggested and low and behold, I can use wifi again.

Thank you.

My problem has now been resolved. I called Apple and they was super helpful. There was a lot of things they tried but ended up Reset all settings. Been fine since. I would highly recommend calling them. They was very interested in the problem I was having.