I have had a dozen replacement sims for one of my sky mobile numbers on an iPhone 11. The sim always shows 3g and when you try to connect to a website: pdp authentication failure. I have tried everything including resetting network settings, popping the sim out and back in, switched to an esim and back to a physical sim etc. It's not a device issue as my other sky sim on the same plan works fine in the same iPhone 11. I'm out of ideas, if anyone has faced the same issue?
