If your HAN device is not working as expected, below you’ll find solutions to the most common issues:
Having trouble connecting? Make sure you have the latest app version
Frequently asked questions (Cozify HAN)
We’re happy to receive feedback on how the device works as well as on these instructions. With your feedback, we can keep improving the experience based on real user needs.
Always make sure the app is updated to the latest version:
1. Update the HAN app on your mobile device to the latest version
- Download the latest version of the Cozify HAN app from your app store.
- The version number should be at least 1.1.0.
2. Troubleshoot connection issues (if needed)
- If you’ve had connection issues between the app and the device, we recommend the following steps. If the connection works normally, you can go directly to step 3.
- Disconnect the Cozify HAN device from the electricity meter.
- Bring the device near your home router and power it using a USB-C power source.
- Reset the device by pressing the reset button for a little over 10 seconds. The device’s LED will start flashing bright white when the reset begins.
- Connect the device to the router primarily via an RJ45 Ethernet cable (fastest method), or alternatively connect it to WiFi using the Cozify HAN app.
3. Update the device
- Open the app and go to the Settings menu.
- Select Update (note: version numbers may differ from the example below)
4. Finish up
- Wait about a minute for the device to update and reboot.
- Check WiFi settings and configure them at this stage if you used an Ethernet cable in step 2.
- Reconnect Cozify HAN to the electricity meter.
- Verify the device is working in the Cozify HAN app.
5. Possible home network connectivity issues
If you still experience connection issues after steps 1–4, it’s possible that your home network’s mDNS service is not working reliably, and the Cozify HAN app may not always find the Cozify HAN device by its name (Cozify-HAN-XXX-YYYY.local.).
In this case, discovery may fail. This is usually resolved by assigning a fixed IP address to the Cozify HAN device’s MAC address in your router’s admin interface (typically under menus such as LAN/DHCP/IP-BINDING), and then entering that IP address in the Cozify HAN app instead of the name in the SETTINGS/ASETUKSET menu.
App won’t start on Android? Clear the cache
In some situations, the Android app may get stuck and won’t open. Clearing the app’s cache and storage usually helps. You can do this in your Android phone settings under Apps, then in the Cozify HAN app details, as shown below.
HAN device not found (VPN may be the cause)
A VPN (Virtual Private Network) may initially prevent the HAN device from establishing a connection. Such VPNs are often, for example, DNA Digiturva and F-Secure.
The solution is to add the local network used by the HAN device (your home network) as a trusted network in your VPN settings: open the Trusted networks menu and select your home network there.
F-Secure example:
https://help.f-secure.com/product.html?home/freedome/latest/fi/task_A6E5BCC4E9384DDD8F0B9F052800484B-freedome-latest-fi
Once your home network is marked as a trusted network for the VPN, the HAN device should be discoverable in the app.