Does smart thermostat affect radiator valve remote access?

HineHall

I originally registered a smart thermostat and two radiator valves in my account. I moved home, realized my thermostat was not compatible and have tried to set just the rad valves but see only ‘No remote access’. I have followed trouble shooting but no change. Are the rad valves linked to my smart thermostat somehow? If I power this up will remote access be restored even if I cannot connect it to my boiler?