Receiving the error "An Unexpected Error Occurred. Try Again." is an indication the Thermostat can’t join the router and it's likely that the router security settings are incorrect.
Check the Wi-Fi® security settings you have enabled on your router. To do this, follow these steps:
- Log into your wireless router by entering the IP address of your router into your web browser.
- If prompted for a username/password, enter it and you’ll be brought to your router’s settings. If you don’t know the login information, try entering “admin” for the username and “password” for the password.
- Once you’ve logged in, look for an option for Wireless, and more specifically, Security.
- For Security Mode, you’re going to select WPA or WPA2-Personal (WPA2-PSK). If given an option for Encryption, select AES, not TKIP.
- In some cases, you may have to change your Wi-Fi password to a more secure password. If you have to change your password, you will have to type the updated password for all of the devices (computers, tablets, smartphones) that connect to your network.
- Click "Save" or "Apply Changes".
- Your router may reboot itself to apply the changes.
- Try to set up your iDevices Switch to your network again.
If you get an Unexpected Error, try the following steps:
- Without pressing the buttons on the Thermostat faceplate, remove the iDevices Thermostat from the mounting plate and then put it back on
- Put the Thermostat back into pairing mode by tapping the Gear, select "Setup", select "Connection", select "iOS", the 8-digit pairing code will display on the screen
- In the iDevices Connected app, tap the menu button (☰) then select "Add Product"
- If the Thermostat does not show after the search, select "Got an error or started setting up in another app?” to continue pairing the Thermostat to the app
- If the Thermostat does show up, the Thermostat did not join the Wi-Fi network, continue with the procedure below if your device is running iOS 9 or iOS 10:
Connect iOS device to the Thermostat:
- Go to Settings > Wi-Fi.
- Determine the full Thermostat Name under “Set Up New Device,” make a note of this Thermostat name. Format of Thermostat name is based off of the current firmware on the Thermostat:
- iDevices Thermostat XXXXXX
- Thermostat XXXXXXXX
- Once Thermostat name is noted, tap “Other…”
Enter the full Thermostat name in the “Name” field:
- The name is case sensitive and is based off of the Switch name noted above enter the name as:
- "iDevices Thermostat XXXXXX"
- If the name was is listed as "Thermostat XXXXXXXX" enter it as "Thermostat-XXXXXXXX"
- Leave “Security” field as “None.”
- Tap “Join” on the top right-hand corner.
iOS device will try to directly connect to Thermostat:
- Tap info icon to the right of the Thermostat name to view the network details.
Enter network numbers into Static IP:
- Tap on “Static” tab.
- Enter the following information exactly in the corresponding sections:
- IP Address: 192.168.0.2
- Subnet Mask: 255.255.255.0
- Router: 192.168.0.1
- Once each number sequence is entered, tap “Wi-Fi” on the top left-hand corner.
Confirm the iOS device is connected to the Thermostat by the checkmark indication next to the Thermostat name:
- Your iOS device is now directly connected to the Thermostat's Wi-Fi.
Under “Set Up New Device” initiate the iOS network info handoff process:
- Tap on the Thermostat device you noted previously.
Proceed to accessory setup:
- Select the Wi-Fi network you will be using your Thermostat with and tap “Next” in the top right-hand corner
Proceed to the iDevices Connected App to finish pairing and adding to HomeKit:
- If the process is successful, open the iDevices Connected App
- Tap the menu button (☰) then select "Add Product"
- Select "Got an error or started setting up in another app?” to continue pairing the Thermostat to the app