Nest thermostats suddenly went offline and now unable to reconnect. W5 Code continues to show

[Tessa-2]

Getting continual w5 code. Thermostat suddenly went offline yesterday. Started by saying ‘unable to connect / move closer to router’ - which didn’t work. Have gone through all the options (reboot router / restart etc) Now  the thermostat has ‘skull and crossbones’ saying ‘your thermostat has a problem and is unable to connect to Wi-Fi’ followed by code w5

Any ideas? very frustrating….

[David_K]

This isn't something you can personally fix unfortunately. Follow these steps:

Troubleshoot a Nest thermostat w5 code - Google Nest Help