Sim not working in iPhone 14 Pro Max

[SabinaE_2431606]

I have just swapped phones and my smarty sim worked for a few days and has now gone off anyone else know why ?

[WelshPaul]

No idea but my son's SIM stopped working today too. Shows no signal on any phone!

[WelshPaul]

Just logged in to his account and the SIM sprung back to life when it received the OTP text. Online account shows:

We're aware of an issue affecting calls, data and text services and our engineers are working to fix this as quickly as possible. We're sorry for any inconvenience this may cause.

[WelshPaul]

Data not working. Get PDP Authentication Failure!