Thanks very much for your reply. Really any help is appreciated!
Regarding the troubleshooting:
- Turn on Airplane mode when facing issue before turning off again
- Made sure I wasn't connecting to random WiFi networks
- Made a log, including connecting in different areas and noting their postcodes (issue only in Charlton)
- Reset network settings
- Switched the network manually and then back again to force a reset
- Updated to latest iOS
- Enabled '5G [always] On' and 'Allow More Data on 5G'
- Disabled 'Limit IP Address Tracking', Apple iCloud Relay, and deleted VPNs and made sure there were no other profiles
- Swapped to a new SIM card
- Tried on different handsets (upgraded to a newer iPhone)
When talking to EE support, they normally advise me to carry out the above on the phone. They complete diagnostics but usually cannot find any issue, so ask me to make a log. When I call back a few days later, the next operator gets me to repeat these steps and the log is not used/the information I collected isn't recorded.
How things have been left, and this has happened repeatedly, is that they looked into a deeper level of diagnostics and found an amber alert which had only came into existence around 4 hours before the call, so this means I now have to wait for this to clear to be able to demonstrate it is an issue which has not been resolved/lived past the alert – and it repeats.
They recently advised that it could just be bad coverage, but the service has got worse – I'm not near any tall or modern buildings, I'm out in the open (even standing next to the nearby EE mast), and the headline coverage checker is good. They can't explain why 5G is no longer available.
I'm really not sure on radio parameters, sorry.
