Network problems after updating to iOS 26.4.1

After updating to iOS 26.4.1 yesterday I have issues with the Network (e.g. invalid connection, when opening Apple Community). Restart and forced restart did not solve the problem. I do have an iPhone 12 Pro Max. Any ideas?

iPhone 12 Pro Max, iOS 26

Posted on Apr 9, 2026 10:29 PM

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7 replies

Apr 13, 2026 1:15 AM in response to matthuett

Network issues are not always the fault of the iOS update!  Many things can cause phone problems.  If you tell people you think it's an iOS update, it might make it harder to fix or find a solution for the real issue.



Remember, the right question often leads to the solution!



Was/Is your device Jailbroken? If that's the situation, please be informed that attributing the issues to iOS updates may not be accurate.



iOS updates aim to enhance user experience, boost security, and fix bugs rather than disrupt core features. The majority of the issues after updates might stem from underlying, unmentioned factors. Updates won't typically alter personal data but may refine settings or features. Backup before major updates for safety. Review Apple's update details and backup advice for a smooth process.


Kindly consider checking your settings and addressing any device issues before attributing the issue to external factors. This could be a pure coincidence that the iOS update affected the iPhone functions.


Before initiating a standard iOS update, it's advisable to create a backup. Have you completed this step? If yes, proceed with the restoration from the backup.



See what each update does: OS — iOS 26, About iOS 18 Updates, About iOS 17 Updates, About iOS 16 Updates, About iOS 15 Updates, About iOS 14 Updates, About iOS 13 Updates, About iOS 12 Updates, and so on...


Apr 13, 2026 1:17 AM in response to matthuett

I conducted a thorough search of this forum using the term 'Cellular network after iOS' or "Call Issue iOS" and uncovered numerous posts detailing similar issues across various iOS updates. This suggests that iOS updates may not consistently be the root cause. Below are a handful of examples extracted from the search results:


Cellular Network issue after iOS update


Call Issue after iOS update


There may be a known issue with your device




The above issues span many models, and iOS updates suggest that many are device-specific and erroneously attributed to iOS updates.



Network problems after updating to iOS 26.4.1

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