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ajithkumar114
User level: Level 1 (8 points)

iOS 27.0.1 – Mobile Network Disconnecting Issue on iPhone 15

After updating my iPhone to iOS 27.0.1, I am facing a serious mobile network issue.


I am using both Airtel and Jio SIMs, and the mobile network/data keeps disconnecting automatically. The issue occurs with both networks. I have already tried resetting network settings, but the problem still persists.


When I enable Airplane Mode and disable it, mobile data works for a few seconds and then the network/data disconnects again.


This issue started only after updating to iOS 27.0.1. Please investigate whether this is a software/ iOS issue and provide a solution or workaround.


Device: iPhone 15


iOS Version: 27.0.1 (24A446)


Issue: Mobile network/data disconnecting intermittently with both Airtel and Jio.

Posted on Oct 3, 2026 7:40 AM

7 replies

Ingo2711
User level: Level 10 (93,009 points)

Oct 3, 2026 1:05 PM in response to ajithkumar114

Sorry, but you should report this issue to Apple Techs directly by using the Feedback link, Apple does not follow these user to user communities.

Feedback - iPhone - Apple


Did you already try to force restart your iPhone after the recent iOS update?

...

  1. Press and quickly release the volume up button.
  2. Press and quickly release the volume down button.
  3. Press and hold the side button.
  4. When the Apple logo appears, release the side button.

...

...

copied from: Force restart iPhone - Apple Support


Also contact your carrier, in case this is a known issue from their side.

SMCtv
User level: Level 1 (8 points)

Oct 12, 2026 8:28 AM in response to ajithkumar114

Mine was NOT the Apple update as specified earlier. My Network providors interface once logged into resolved my issue. The providors menu's Instant-Privacy had blocked my iPhone from the handshake configuration. My sincerest apologies to Apple.

SMCtv
User level: Level 1 (8 points)

Oct 10, 2026 12:51 PM in response to ajithkumar114

Yes, I have the same issue as you with a iPhone 16 Pro. Had the upgrade to iOS 27.0.1 and I had a window interface pop up on the screen requesting 'do I want to reset my home network'. When I did, my connection disabled and I have not been able to connect since dispite going through all the diagnostics and parameter settings also along with technical support at The Genius Bar who were also unable to assist. I have checked all diagnostics of my routers interface settings but nothing there had changed because the modifications were made withing the iOS updates when it made the request for me to reset my home network. iOS 26 to iOS 27.0.1, are notorious for introducing low-level network compatibility bugs, especially with customized network environments. My advise is Wait for iOS 27.0.2 as the iOS 27 handshake bug only targets the high-frequency 5GHz bands.

prasannav387
User level: Level 1 (14 points)

Oct 11, 2026 12:09 PM in response to ajithkumar114

i also face the same issue. I have both Airtel and Jio. Its very frustrating and disgusting, that nothing works in the phone with mobile internet after the update to iOS 27.0.1. I have iphone 14 pro max.

Rathishab810
User level: Level 1 (8 points)

Oct 5, 2026 9:55 AM in response to ajithkumar114

Same issue on my iphone 15

network issue

airtel but jio

I have reset

force restart

both thinks but same issue



Read_me
User level: Level 1 (8 points)

Oct 11, 2026 1:12 PM in response to Ingo2711

I was Tried whatever you suggested but i tried erasing all data from my i phone but not useful

xozonx
User level: Level 1 (8 points)

Oct 12, 2026 8:37 AM in response to ajithkumar114

Have the same problem. Created a case with my network provider and Apple. They decided to exchange my phone due to hardware malfunction. Thought problem solved? Nope, still having same issues.

Originally posted at discussions.apple.com/thread/256369692