Problem with 5GHz Wifi on iPhone 12 Pro

My iPhone 12 Pro Max spends all day, every day connected to 5 GHz networks.

What happens when you try?

Have you contacted Apple Support directly?

Contact - Official Apple Support

I have this same issue. If switch the Wi-Fi off then back on it unfreezes for a while. My old iphone 10s max did not do this even when running OS 14

Have you tried:

• Restart your router by removing power from it for 15-30 seconds
• Settings/General/Reset - Reset network settings

Checked iTunes and Music. Same problem on 5Ghz band.

I do know that my internet provider use Zyxel HW.

Will check on other Wifi hardware when I will be able to.

But yes... hopefully the upcoming 14.2 release maybe have an fix for this.

Hi, I’m from UK (*12Pro). Done setup yesterday and going over my apps. Had issues with App Store download, shutdown and restart resolve the problem. But now having problems with other apps again. Tried Speedtest, its not working and load Safari but no issues, can load-up websites. Tried again to login my KLM app, but it won’t even load the login page. I’m not too sure if my problem has to do with WIFI, when I use another phone line’s data I encounter the same problem too.

I am having same issues with WiFi on my 12pro. It’s like not moving fast. My old 8plus loaded apps web pages and data , instantly and there is a very noticeable delay on the iPhone 12pro. I mean WiFi speed is one of the reasons I upgraded. Come on apple

That’s great news. Glad yours is now working. I’m using XFINITY, so it’s their router (and it says it’s the latest version). My daughter’s iPhone 11 is having no issues with it. I had both our 5 and 2.4 using the same name. I separated them in order for our 12s to be able to use the 2.4 signal. They work great that way. When I try to connect to the 5, they no longer connect at all. Just tells me they can’t connect. Even forgot the network to try a fresh connection with no luck. Need to find a 5 signal somewhere else to test to see if it’s the phones or the router.

Frustrating that I’m not the only one. Literally apple products are the only thing I don’t read reviews on. They’re usually not this bad.

I myself have the same if not worse problem. I upgraded from a 6s to a 12pro. Restored from the cloud. Literally took 3 days. I blamed the slowness on that. Nope 4 days later phone is moving like a snail. I did update to iOS 14.2 and that fixed my pictures music and texting but internet is horrible still. This goes for apps as well. Anything that needs to slightly download something is basically not working. It took my phone 3 tried and probably 10 min just to be able to respond to this thread.

I like most on here have ordered the stuff to upgrade my home wifi. That will arrive today. But it doesn’t explain why nothing works off wifi as well. My wife is over here watching tictok like it’s going out of style. No issues. She works from home on her office computer 5 days a week slow but no issues.

I don’t know how to turn off 5G. I’m with Verizon and it says 5G here and there. Makes no difference in performance.

im just speechless that my new $1500 phone is running worse than a phone that was over 6 years old. Almost completely maxed out on internal memory, battery lasted about 2 hrs on a full charge, completely original never repaired by Apple.

lastly I use this for my business and it’s making my job and my work performance horrible.

im hoping something gets figured out soon. I’m extremely dissatisfied at this point.

I'm having a similar issue.

Received my new iPhone 12 mini today and as soon as I connect it to my 5ghz wireless the network speed drops to about 0.5mbps for all devices on the network and cuts out sporadically.

Turn the wireless off on the new iPhone and everything goes back to normal for the other devices.

My iPhone 6s and iPad Pro and our old iPad air and my partners iPhone SE get the full 300 and something my wireless can provide on 5ghz. (gigabit fiber connection)

You misunderstand:

The fact that all the routers are for the same ISP means that it's almost certainly the ISP's DNS server that is slow.

By setting your device to use Google's DNS you are bypassing the ISP's DNS server and aren't subject to their slowdowns in DNS lookups.

There is nothing for Apple to do here; the fault is with your ISP's DNS server which, as I mentioned above, is something ISPs have no real incentive to upgrade to a system that performs better.

I have both phones on same os. It makes a difference. I’m not engaging with this tit tat any further. If anyone else could try and see if it helps they could further this discussion effectively rather than arguing theory here. Thanks and happy Christmas

Hello,

I just bought an iPhone 12 Pro yesterday and I'm also having WIFI issues. My router is in my living room, when I'm in any other room WIFI is terrible. I compared with my iPhone 6s and it works fine, full network speed in any room, the iPhone 12 Pro can be 4 to 5 times slower to no connection at all. Both using 5GHz, as I can monitor it on my router. The router is also WIFI 6 enabled. Is this a software or hardware issue with the iPhone 12 Pro? I thought it was meant to have better coverage not worse then the iPhone 6s (which is a beast!)