iPhone 12 is so slow

Yeah it seems like my optimum fix was taking the WiFi off private address and for data doing; cellular->cellular data options->voice and date->switch to LTE.

AirportExtreme(6th generation) settings have never been modified, and the unit was connected directly to my modem.  It “just worked” when doing all operating system updates  and large file downloads on my numerous iPhones, iPads, iMacs during the last 5 years.  Was the time it took to do these updates what I should take - I don’t know.  However, when trying several times to download large files to my new iPhone mini and iPhone pro max, the phones basically froze during the download process and “it just did not work”.  My new combination modem/router from COX solved this problem and the new phones with no modifications now “just works” the way they should.

same slow issue on refreshing page on almost all apps and sites during browsing. I change connection from 2.4 Ghz to 5Ghz network that seems to be helpful. Disabling private address didn’t help me on 2.4Ghz on wifi.

its unclear if you are referring to extremely low battery life or slow wifi, if it is the wifi, the iphone 12 uses a very new wifi protocol that you can turn off if it slows down your system.

1. Go to Settings> Wifi (connect to your network and press the i in the circle)
2. Make sure "Private address" is toggled off (it will probably be automatically enabled).
3. Also make sure low data mode is off (it should ask you to turn this off if you start a big download so you can probably keep it on).

if your battery is dying in 30 mins. of normal use, take it to the apple store or call support. Its probably a battery defect.

Turn a private address off or on for a network

1. Open the Settings app, then tap Wi-Fi.
2. Tap the information button next to a network.
3. Tap Private Address. If your device joined the network without using a private address, a privacy warning will explain why.

go to wifi and click on the blue circle with i inside and disable private address

Then go to Cellular data options then go to voice and data and choose LTE

Go back and click data mode and choose standard

Go to settings, go to WiFi, you’ll see a circled i, click on that, you’ll then see private address, click on or off, try it both ways to see if it makes any difference in speed, it would be good if private address is in the on position and works better for you, it gives you more privacy

hope this helps

My phone seems to be working pretty well now.

if you have WiFi 5G with the newer phones, make sure you have that check marked as you choice

settings> cellular > cellular data options> lte (also try using 5g on because for me that’s the fastest)

hey i had the same issue, just try to reset network settings under general:reset.

hopefully that works for ya.

Go to wifi connection and click on i next to it inside i turn off private addresses...

thats it solved

you do this every time you connect to a new wifi connection

Setting, Wifi, where your network is listed click the blue circle with an i in its center. Then scroll down and turn off private address.

My phone was being super slow and I took off the case and it was twice as fast without the case on

What did Apple Support say when you worked the issue with them?

"Lock ups" are not normal, and certainly I and most others have not seen one.