I have a FP2 with Lineage 18.1 with microG.
My phone is currently also stuck on Edge-connectivity (“E”). I tried to solve this by contacting the SIM provider, so far without success.
Additionally I have the same problem as described above. I played around with the settings, and switched to 2G, to see if it has any effect. Since then I haven’t been able to switch back to 4G. I can click on it, but nothing changes.
Is this a common issue with FP2? Can somebody please help?