No network connection

Something odd has happened to my Nord. It was running stable build 0.23 April 2022 release just fine yesterday. Today it won’t connect to phone network and every time I reboot it resets the system clock to 1st April 2022 (build release date). I’ve tried resetting the network settings. Below is the build number, anyone have any ideas please?

e_avicii-userdebug 10 QQ3A.200805.001 eng.root.20220401.152129 dev-keys,stable-release

I’m away from my laptop for next 1.5 weeks and would rather not factory reset the device, open to it if that may provide a fix of course.