Nest thermostat is offline and other connection issuesNest thermostat is offlineNest 제품의 Wi-Fi 및 연결 문제 해결하기Troubleshoot setup: thermostat doesn’t show your Wi-Fi networkChange Nest thermostat Wi-Fi networkTroubleshoot Nest Thermostat bluetooth connectionCan't connect Nest thermostat to the appNest Thermostat unable to update software