ATT blames Samsung update and techs have no solution other than factory reset and hope it works. Cell network drops, internet and apps drop in and out, mobile data sporadically works. WiFi works fine but Mobile data and Cellular Network are broken with the October update.
Mine started this mess also. I have just backed up everything to do a master reset now. I put the sim in other devices and LTE comes up fine I swapped the sim from another device and no data. THis started for me on sunday after the time changed. So i reset the network settings multiple times toggle airplane mode and etc. No worky. It shows emergency calls only.
I am having this problem as well with AT&T. Mobile data is broken. I sporadically get service and Internet then it stops working even with 5 bars and the 5G logo on. Cell phone usage comes and goes a little better but drops calls or says the phone is not registered on a mobile network often. Got a new sim card, refreshed network, turned data on and off, airplane mode, etc... spent hours on calls and in stores with AT&T blaming Samsung and vice versa. One rep had me turn off private DNS and that worked for 30 minutes or so. I am told this is happening on Verizon and AT&T but apparently only on an S22U Ultra. Phone gets hot on mobile data. One rep suggested a factory reset but said he doesn't know why that would do anything different but he has no other ideas. So far AT&T just wants me to buy a new phone and has offered no help.
Ya my phone is completely **bleep** up from this update. I have to many things on my phone to factory reset. I have banks, job apps, and the one I'm worried about the most is my crypto apps.
If our phones can't be fixed then samsung needs to pay for a new phone at the very least.
