iPhone 17 pro Cellular Connection Issue

I have the same connectivity issue since the IPhone 14pro. The phone keeps dtoping calls within a few seconds of the conversation! Several

times a days at any time I may have to call the person back 5-6-7 times to get a stable connection. Another issue is when I call out, it says “call failed” and I have to try 7-8 times to finally get it through. A third problem is people call me and the phone doesn’t ring, it goes straight to voicemail. I checked with my carrier ATT and they checked everything, there is no issue on their end. Also I have 2 other older iPhones on the same ATT service: those phones have no issues. So it is not a carrier issue. I brought the phone to the Apple Store to get it diagnosed a couple of times and no hardware issues.

the call drop is definitely an Apple software issue…

i was so frustrated because I use the phone almost exclusively for work.

thos last week I went to get an iPhone 17 pro, hoping to get rid of this problem.

but the 17pro has exactly the same problem!!! I give up.

if someone has a solution please post it here! I don’t know what else to do…

This link provides some info on why these connectivity issues are happening & steps to try to fix them.

https://mobilityarena.com/cellular-connectivity-issues-on-iphone-17/

I haven’t tried any of the suggestions yet, but maybe some of the ideas will be helpful.

We have an issue with 17 pro max. Physical sim installed in the phone and every 1-2 days phone doesn't recognise the sim-card. Airplane mode and restarting the phone doesn't help. Only opening and closing the sim tray helps to comeback the network. We bought 2 same phones and the other one doesn't have the issue.

Very frustrated. Have many Apple devices. Using their products for more than 15 years. They got lots of money from me and my family. I think that's enough. Apple lost us and our money!

Hi, this is not Apple Support. Apple and Apple Support do not participate here. Everyone posting and commenting are fellow Apple users, just like you. Apple will not be aware of your issue unless you reach out to them.

You need to have Apple perform diagnostics on your iPhone. It can be done in person at an Apple Retail Store or at an Apple Authorized Service Provider. You can also contact Apple Support and request remote diagnostics.

If you’re in the US, please call  1-800-MY-APPLE, or outside the US, consult the support articles below. In Canada, call 1-800-263-3394.

Contact Apple for support and service - Apple Support

Genius Bar Reservation and Apple Support Options - Apple

Explore Service Locations

Official Apple Support

HI good afternoon,

i got new iphone recently and gone through every methods i found in web for the cellular data not working issue. Until today, i managed to solve it by changing the default APN  (Access Point Name) "shwap" to "giga".

shwap is the Postpaid APN for Starhub service provider where

giga is the APN for giga sim card. *** Giga is owned by Starhub ****

Once changed APN to giga solved my issue.

Have been trying this for 2 days, finally my cellular data now work.

My comment : android is more user friendly than ios. Let me try to familiarize myself with ios hope i won't be regret switching from android to ios.

I am from Singapore.

Rgds,

Just in case anyone is wondering if this is still happening - yes.

I’ve just had the logic board replaced under warranty, have been staying up to date with my iOS updates, etc… and yet the phone will still lose cellular connectivity and displays “could not activate cellular data network” repeatedly.

And as for carriers being the problem - this is with KPN in Europe, and my 16e works great without any issues.

I’ve got no idea what’s wrong - but seems like the 17 pro has a fundamental design issue.

people say its the carrier, its not, after updating to iOS 26.3, my calls get dropped, i lose service and the only way to bring it back is to enable airplane mode and restarting my device, hopefully apple comes out with a fix for this.

Gre9_r wrote:

[C]an [I] get [a] refund for this phone as purchased direct from [A]pple?

Yes, if the purchase was made within the last fourteen days.

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.

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.

There's definitely a cellular problem, even after 26.0.1 update.

The latency ping is not stable in 4G or 5G cellular.

Oddly enough, if you watch streaming like Twitch under PIP mode, the ping will be stable.

i am having same issue, tried all trouble shooting with both the service provider and apple it self but not resolved, i would say its the problem of apple because i had same service provider with different iphone and it worked fine but when i bought iphone 17 problems started.

what you want everyone in the world who has an issue to log it in this forum? There is obviously a phone issue itself whether HW/SW, regardless this should be taken seriously. This happening in Australia as well plus overheating of the device is an issue here.