Dec 25, 2018
"Could not activate cellular data network" - Sprint Community "Could not activate cellular data network" I have had my iPhone 4 for over a year and have never seen this pop up. Suddenly, my phone will not connect to the internet. It worked in my office before I left for lunch, and even outside during lunch, but when I returned to the office this message popped up. Use Apple Watch with a cellular network - Apple Support Try one of the following when connected to a cellular network: Use the Explorer watch face, which uses green dots to show cellular signal strength. Four dots is a good connection. One dot is poor. Open Control Center. The green dots at the top left show the cellular connection status. Add the Cellular complication to the watch face. iPhone Unable to Use Cellular Data With a New Carrier Jun 23, 2018
What's with the PDP Authentication Failure when connecting
May 19, 2018 [Fixed] How to Fix Cellular Data Not Working On Android
What to do if your iPhone is not connecting to a cellular
May 19, 2018