Jo Lethbridge
Lurker
Recently upgraded to an s9 from s5. Whenever I leave work (and disconnect from my work Wi-Fi), then go to use my phone on the train my mobile internet doesn't work. I have dull 4g signal. I have to disconnect it then turn it back on and it's fine. I don't have this problem when leaving home on a morning and disconnecting from my own Wi-Fi? I don't know if it is some setting I have overlooked (it's a big jump s5 to s9 settings/options/features wise!)