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My iPhone 17 Pro Max have slow performance and poor service with T-mobile

I recently bought the iPhone 17 pro max and since day one I feel like I’m using the original iPhone. The phone is so slow. I barely get service anywhere. I have T-mobile and I have my boyfriend and my son all on my plan and they will be right next to me and have no issues and full bars. I keep updating the new iOS thinking the next time will fix it but no. All my apps constantly crash as well. At work I have absolutely no service for 8 hours a day most days unless I log into their terrible WiFi. When I’m on WiFi at home for the most part I don’t have issues as long as I’m right next to the router. I’m terrible with technology and phones lol but whatever the VPN is I constantly see that instead of any bars. I’ve never had full bars since I’ve had the phone and before this new phone I had service everywhere. Not sure what to do anymore. I feel like I’m using a phone with dial up internet lol. Help!! I’m about to buy a beater phone until this is paid off just to be able to use it without wasting my life away waiting for the page to load.



[Re-Titled by Moderator]

Original Title: Why does it feel like my iPhone 17 pro max is using dial up internet lol? It’s so slow and I barely have service anywhere.

2 replies

Perhaps a long shot:


Do you have a 3rd party VPN installed, even if you are not using it? If so, delete the VPN profile in Settings/General/VPN & Device Management/VPN, then restart your device. Don't just turn it off; delete the profile. Updates sometimes "break" VPN, and it needs to be removed. If that fixes it, you can try reinstalling VPN, but probably shouldn't.

Get rid of your VPN, that may for sure give you network problems and slow down all internet traffic. Your phone does not come with a VPN, so it would have to have been installed on your device by someone that has physical access to it, including your Passcode to unlock the device.


Beyond that, contact T-Mobile so they can perform remote diagnostics on your phone's cellular connection. They may also have a Carrier update that can be pushed to your device.