iPhone 12 is so slow

NovellusVector wrote:

Let me guess: apple still hasn’t addressed AND FIXED these issues.

There is nothing for Apple to fix here; the issue is elsewhere.

that's worked for me, too

Not me… still slow

I am also experiencing this internet slow down on my iPhone 12 256gb. Especially when watching YouTube Videos. On 480p I can watch it just fine but 720p or 1080p, it lags and becomes unwatchable. I don’t know why. It’s slow even when using WiFi too.

My iPhone 12 pro after the update 14.2.1 started acting slow yesterday I could not get on any banking apps or and game apps it would load very slowly and when it did open it would be a blank page but my internet was working fine as well and I had full bars

Works great when I turn off WiFi, obviously that is no solution. I thought maybe it was because it was passed over the login and password when I swapped phones- told it to forget my network and then signed in again. Still the same. Our 11 and X still super fast on the WiFi. Is this an issue with the old SIM card?

Have you tried a Speedtest? I'm just curious if you are seeing slower speeds there as compared to your iPad.

These issues could be due to a variety of reasons, from Safari to DNS issues, so it would be best to find out where the theoretical slowdowns exist.

I know people hate to hear "I'm not seeing them…" but I'm not, so it would be most useful to track down where in the process things may be going awry.

Note that just loading a web page requires about six different things to work together, and an issue may be occurring in any of them.

Note also, the very first thing any of you experiencing this issue should do is notify Apple Support directly:

Contact - Official Apple Support

They are the ones who could notify software engineering of an issue; Apple does not read these forums except to monitor for adherence to the Terms of Use.

Using a private MAC address should not slow down the Internet at all unless your infrastructure is doing some type of cacheing by MAC address.

This is particularly true for some security firewalls that treat new connections from an "unknown" device as suspicious.

Regardless, I'm glad you found a solution.

Glenn, WiFi standards change all the time, but you were using a very old one. That’s is not a phone issue, the phone cannot use more signal than your old router is able to send. You should be looking at upgrading your router every few years.

I’ve been facing issues with my home xfinity WiFi. I tried turning the private address off on multiple iOS 14 devices in our home and all of them are faster now!!! So I’m glad this trick works. i tried this with my friends WiFi also and it is now faster there also. Of course both our routers could have some bugs but it seems more likely to me that it’s in the private address feature than just came in iOS 14 and made our devices slower.

I would rather have it turned off and enjoy my fast browsing than :)

All the private Wi-Fi address feature does is use a randomized MAC hardware address for your connection and changes it every 24 hours to a new value.

This can slow down browsing on wireless access points and routers that cache "known" hardware addresses for various reasons.

However, that's bad behavior on the part of said router; this behavior means that if you added a new device that wasn't previously known to your network, it too would be slow for some period of time, something you probably wouldn't notice because it was a new device and you had no personal experiential baseline.

A fun aside to private Wi-Fi addresses is it also breaks parental controls/limits on many Wi-Fi routers, as each 24 hours the device becomes a "new" device to the router.

Actually, let me issue a mea-culpa here.

Originally the feature was intended to randomize the MAC address every 24 hours, but it turns out it actually randomizes the address per-SSID.

So it appears the main issue may be that certain routers behave differently depending upon which device they believe is connected, and it can't figure out that the device is say an iPhone anymore.

It's still a Wi-Fi router issue, but not in the way I originally thought.

That makes sense. So if you have a cheap router like me, it’s probably still best to turn off that function? Interestingly, that just happened to me again on my older iphone and I turned it off there too. So this is definitely not an iPhone 12 issue, it’s this new feature in iOS

Me to B I bought a a iPhone 12 pro max and my no old google pixel 2 xl on 4g was 2x faster what is going on here B this phone is V way to expensive to be stuck paying for a phone that cost this much with this bad Of performance issues the speed is terrible I will search something on the Internet and the page or just sit there and load unload and load and never come up and i have to turn off my phone and turn it back on and sometimes that works I hope you guys fix this with an update or issue some recalls or something because somethings definitely not right