How to Fix Apps Not Working on Cellular Data After iOS 18 Update?

iPhone 12 Pro Max user with Verizon (unlimited plan w/travel pass) and am currently traveling abroad until the end of the year, and all of a sudden I can ONLY make calls and text. I have been unable to utilize my cellular data for over 2 weeks!

After, hours of troubleshooting with Verizon, they say the issue is the device. Contacted Apple and their diagnostic says that nothing is wrong with my device, and it must be an issue with the carrier. I have been with Verizon and on the same plan for years and have had this device since 2021, and only since the release of iOS 18, I’m having cellular data issues.

Please resolve this iOS 18 glitch, as I’ll switch over to Samsung - if I need to buy a new device.

Please help, my mobile is 15 Pro Max, IOS 18.0.1, since I installed it, it says that I can't access the internet with cellular data other than WiFi, what should I do?

I have an IPhone 14 (regular) and ever since ios 18 my phone has been slower than ever when I’m out of home using cellular and EVEN at home using wifi. I’m very relieved that I am not the only one and that it very much IS ios 18 that is causing the issue in general. I tried updating my phone to ios 18.01 but i think load times got even worse. Apple please fix this as soon as possible, i cannot contact people because apps are completely unusable.

Restart your phone to get that issue resolved. That did the trick for me.

I had the problem on iphone13 pro. Turning on airplane mode and turning it off did the trick. If not, this video had a couple of other suggestions https://youtu.be/2sEkluu4mh4?feature=shared

SOLUTION!: Found a simple fix...remove VPN! i had McAffee VPN which with 18.1 apparently confused the applications since NONE worked. I finally went and removed McAffee VPN and all apps now seem to work! (All were previously reporting 'no internet'

got a reponse 'I don't have VPN'

neither did i! (i did NOT have VPN on)

but go to

General->VPN&Device Management

and see if somehow someway VPN was turned ON

and if so

TURN IT OFF

and voila

all my apps no longer say 'no internet'!

Same issue here, how much should we wait for a fix?

I only see the question, where is the solution?

How is repair After undated I.os. 18.0.1 not working cellular dat

Kind of the same here. After updating, the Meross app which controls my smart plugs, the Kasa app that controls my security camera, the Cloudedge app that controls my doorbell camera and the app that controls my Oasis Mini are all bricked. The smartplugs still work in their basic form but they are unresponsive and unable to be re-added to homekit. The app throws an error when trying to add them back in. The Kasa app shows no items available to add. I’ve tried to re-add my doorbell camera and it’s unresponsive as is the same with my Oasis Mini. I’ve reset network connections, restarted my phone as well as restarting my router…nada. I wish there was an easy way to go back to 17 until they have these issues sussed out.

Isn’t the point of beta to make sure it’s ready for release? I’ve never had so many problems with a iOS release. iPhone 15 promax… I can even get notifications from some apps that I can’t actually open to view.

It works for me when I turned off ‘ use carrier settings ‘

To do that go to cellular then cellular data network and turn off Carrier settings it will ask you erase carrier settings and hit erase and after that it will off and you can go back and turn on cellular data it will automatically work! It work for me

Resolved. I turned off WiFi on my 13pro and shutdown the phone. After waiting about 5 minutes, I turned my phone on. All apps are working via cellular connection now. I have not turned WiFi back on yet, but will do later.

I been using IOS 18 for about 5 months and I have only now experienced this problem with my cellular data tbh seeing how buggy this iOS is apple should have tested it a little bit more before releasing it to the public…… and for those wondering if there’s a fix for this there’s not this update turns your phone into a brick or a super mini iPad the only way to access your internet is via a hotspot or WiFi