Connectivity failure after iOS 26.2.1 update

"Connectivity failure after iOS 26.2.1 update: after updating my iphone 13 to ios 26.2.1 my phone bacame off the network grod. i no longer can connect to my phone provoder network. How to fix this"

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If you mean network "grid", then contact your Carrier.

Troubleshooting Cellular Data:

A. "No Service":

Is "No Service" shown on the top-left corner of your screen? If so, go here to fix that: If you See No Service or Searching on your iPhone or iPad - Apple Support

B. "No SIM": If "No SIM" is shown on the top-left corner of your screen, go here to fix that: If you See 'invalid SIM' or 'no SIM' on your iPhone or iPad - Apple Support

C. Install a Cellular Update:

You might need to install a cellular update. So, learn more on that here: Update your Carrier Settings Manually on your iPhone or iPad - Apple Support

D. Report this to Apple...

So, do your Part: Provide Apple with feedback on this, letting them know about this issue.  Apple may not get back to you directly, but the more feedback they receive on this, the more they will know what is occurring, and what bug fixes to include in updates to come. Apple will know nothing of you occurrences, if you don't report it to them.

1. Go Here: Feedback - iPhone - Apple
2. Select: "Bug Report" for the "Feedback Type"
3. Comment: that this all began after installing an update. Include the URL of this thread
4. Proceed from there as necessary

Discovered this very inconvenient problem 45 minutes before leaving home to teach Spinning with Apple Music, playlist would not load. The fix, though I didn't have time to discover it until later in AM, was to turn phone completely off. Wait a beat. Reset worked. (BTW iPadOS 26.2 bricked one iPad, put a second in a huge loop I was able to get out of.)

I finally got it to work after deleting my VPN. Not just turning it off but deleting it completely.

replacing my physical sim with carrier then deleting and re-adding VPN worked for me.

prior, I wasn’t receiving 2FA texts,

phone calls, and some text messages after update.

no issues once sim replaced and VPN delete then re-add. (Try VPN step prior to replacing sim)

"replacing my physical sim with carrier then deleting and re-adding VPN worked for me."

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Delete the VPN. It just gets in the way on an Apple device, and all of connectivity issue is pure example of how and why.

The VPN is representing you as bing somewhere else nd is conflating with servers.

I lost internet connection after IOS26.2.1 tho WiFi was good. I tried every troubleshooting suggestion to no effect but eventually deleted the AVG VPN. No effect. When I tried to reinstall it from the AVG App the app froze. So I deleted and reinstalled the app and then the VPN. Boom! Problem solved. Hope this helps. Good luck if you have this problem - it’s maddening and steals hours and hours. Kindest regards fellow users

I’m experiencing the same on iOS 26.2.1 on my iPhone 16 Pro Max. Full power down and power up resolves but it’s happened so far 3 times in 7-8 hours…

azza60 wrote:

after updating my iphone 13 to ios 26.2.1 my phone bacame off the network grod. i no longer can connect to my phone provoder network. How to fix this

Can try restarting your phone or doing a force restart.

Contact your cellular data provider or look at their help site.

I have the apple iphone 13 pro max. I installed the latest 26.2.1 firmware update (fml 🤦‍♂️) and get messages such as “no sim” or “sim (card) failure”. Absolutely no data connection anymore. Just wonderful, NOT!!! Very disappointed but not surprised. I’ll have to go to my Verizon (carrier) business which is about 45 miles away from me.

D-Rocker wrote:

I have the apple iphone 13 pro max. I installed the latest 26.2.1 firmware update (fml 🤦‍♂️) and get messages such as “no sim” or “sim (card) failure”. Absolutely no data connection anymore. Just wonderful, NOT!!! Very disappointed but not surprised. I’ll have to go to my Verizon (carrier) business which is about 45 miles away from me.

Let Verizon know how disappointed you are, that the service you pay for on a monthly basis doesn't work anymore.

With a MFYE4VC/A (CA 17pm) in France with eSIM with Orange network I keep loosing cell connectivity since I upgraded to 26.2.1 this morning. Even after reboot cell connectivity is down.

This seems to be related to 26.2.1 I never ever experienced that before.

Same with my iPhone 15.

Forget network, reset network, reboot, airplane mode all work for a few minutes…but ultimately then straight back to intermittent, lagging and loss of WiFi even when stood next to router.

just for context - laptop and MacBook WiFi all working fine without loss.

just iPhone.

quick resolve would be nice??

Very interesting ... thanks for one more insight

Also an interesting piece of puzzle thanks!