If you need help with resolving your Wi-Fi connectivity issues, you may download the RouteThis diagnostic tool on your mobile device using the links below and follow the instructions provided in the app.
![ion-thermostat-login ion-thermostat-login](https://images.carriercms.com/image/upload/w_419,c_lfill,f_auto,q_auto/v1583042013/icp/tempstar/products/thermostats/ion-thermostat-login.png)
Ion™ System Control
Product InformationLearn More
DOWNLOADS
My Ion™ Mobile App for iOS®
My Ion™ Mobile App for Android®
My Ion™ Mobile App for Desktop
RouteThis App for iOS® (Use code CARR to download) open_in_new Opens in new window
RouteThis App for Android® (Use code CARR to download) open_in_new Opens in new window
REGISTER LOGIN
![observer-thermostat-login observer-thermostat-login](https://images.carriercms.com/image/upload/w_419,c_lfill,f_auto,q_auto/v1588127413/icp/tempstar/products/thermostats/observer-thermostat-login.png)
Observer® System Control
Product InformationLearn More
DOWNLOADS
My Observer® Mobile App for iOS®
My Observer® Mobile App for Android®
My Observer® Mobile App for Desktop
RouteThis App for iOS® (Use code CARR to download) open_in_new Opens in new window
RouteThis App for Android® (Use code CARR to download) open_in_new Opens in new window
REGISTER LOGIN