iPhone 17 pro Cellular Connection Issue

I had issue with my new iPhone 17 Pro. It could not hold even one minute long conversation over FaceTime or WhatsApp or any data call. I did a lot of research, I went to the Apple Store and they ran the diagnostics. Everything comes fine. What finally did the trick was to delete all my eSIM and reinstall the eSIM by going to my T-Mobile store. The problem that is happening is the eSIM gets transferred to the new phone and that’s where there are some challenges. I guess the work around towards this is only to delete your eSIM and then reinstall mind you in the network store. They might just refresh the eSIM, but that does not work, you have to delete the eSIM and then reinstall the eSIM by the carrier.

Update : I found the issue ! This was related to VPN.LAT software !! this vpn application, even if the vpn was disabled in the iphone settings, crash and reboot my e-sim(s) !

Once uninstalled, everything works fine

Should be fixed in iOS... probably

My wife has the same issue with iPhone 17 Pro Max. I have her old iPhone 12 Pro Max. Both updated to latest OS. With the same settings and same mobile operator, same e-sim config. On 17 Pro Max it doesn't connect to cellular net in Network Selection (in both modes for the same network; auto and manually picked network). On 12 Pro Max it connects automatically to cellular net. So this is deffinitelly Apple OS firmware issue related to cellular on 17 Pro Max.

I changed 5G to LTE and the issue went away. Definitely an Apple issue.

I had same problem. Have u tried to have a technician at Verizon reset your SIM card through your settings ? This resolved my issues

Nothing. No solution to fix. I just turned on LTE. Then I don't have the issue. Terrible I can't use 5g

Are you using a VPN? It’s a known issue that can cause what you’re experiencing. Do you have any profiles in,

iPhone > Settings > General > VPN & Device Management > ??

Apple is not participating on this user to user forums so we cannot help you. I believe tho it is a carrier issue, I dont have any problems with my iPhone 17 pro with this, but I hear issues around me and on this forums happening

I’ve had the same issue but most of the time when I’m on a lengthy phone call more than 10 minutes. The call drops yesterday. I was on a call for about 32 minutes and it dropped three times. I had a 16 pro max before and never had an issue with long phone calls. Today I had to go to the store and used my Apple wallet and it failed to open up. I was told that it needs a cellular or Wi-Fi service for Apple wallet to work of course because it has to verify what you’re doing is approved.

I also noticed that Wi-Fi is a little bit slower than I expected. I’ve had more dropped calls with this phone than ever before with others.

17 Pro Max purchase on launch day.

Running into the exact same issue. Was on a zoom call using heavy data, dropped at least 12 times from 5G UW to SOS. Contacted Apple and received the same crappy solution. I guess I’ll return it. Sigh.

I’ve had this problem on the last two phones I’ve had so that makes me think it is a Verizon issue. No one else on my plan is having any issues like this. I am currently on a 15 pro and was on a 13 pro prior to that. Verizon’s solution was to turn on Wi-Fi calling, but that didn’t change anything. I still lost signal and dropped calls even on Wi-Fi. About a month ago I turned off Wi-Fi calling and I haven’t had the issue since. Probably just coincidence though.

I’ve been having the same issue for a week now full bars/5G the it disappeared to NO SERVICE for about 2-3 seconds then I’m connected this can happen multiple times throughout the day sometimes very close together for some reason it only happens at work, contact apple support and my carrier multiple times like usual it’s no one’s fault! 😂 i have a week left before i can return it, never had this happened with my 15 pro max.

I am in the same boat. Went through my daily routine work > store > home with 0 drops in 3 years on my iPhone 14 Pro Max and I finally decided to upgrade and now I’m getting 10+ full data/voice drops per workday.

I’ve been going back and forth with Apple and the carrier and it’s just the Spider-Man meme where they’re all pointing at each other.

I guess I’m giving Apple until the end of the return window to fix this and if they don’t the phone is going back to them. Unbelievable that this shipped.

I’ve been having the same issue for the past 48 hours. Neither Apple nor Verizon are being helpful. This issue seems to be isolated to Pro models. Can swap for another Pro without charge, but risk still having the same issue. Both Verizon and Apple are hoping that we just roll over and let them nickel and dime us. Not satisfied with how either company is handling this

Installed 26.0.1 yesterday, still getting drops today. I have the go ahead from an Apple Senior Advisor to exchange the phone. If there’s no fix before the end of my return window it’s going back to Apple. I just really don’t think it’s specific to my phone.