> It's made even more annoying by the fact that "Forgetting" the connection only works until the phone is rebooted, at which point the behaviour returns.
That seems odd. My phone doesn't connect to a network unless it's toggled to auto join, and certainly not post "forget". Can you not control this?
I'm not familiar with the networks in question, but I've run into a couple wifi networks connected to my lte carrier, and my unlocked phone pushes them hard. I imagine there's something coming from the SIM, and I could see the OS picking up SIM affiliated wifi networks on boot or sim insertion. Unless special care were taken, it makes sense that forgetting a network isn't remembered.
As far as I can tell, it's because the configuration comes from EAP-SIM (https://datatracker.ietf.org/doc/html/RFC4186) which gets refreshed on every reboot. This cannot be controlled - it will always regenerate when you restart the phone.
That seems odd. My phone doesn't connect to a network unless it's toggled to auto join, and certainly not post "forget". Can you not control this?