The Wi-Fi signal strength at the installation site of the domestic appliance is insufficient.
Make sure that the signal of your Wi-Fi network is sufficiently strong at the installation location of your domestic appliance.
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Fault code 3.7.17 (.200) Failed to add Miele domestic appliance
Adding the Miele domestic appliance in the Miele app fails with fault code 3.7.17 (.200).
The ports in the router or standard gateway are blocked.
Check the system requirements for networked Miele domestic appliances and make sure that ports 80, 443, 53, and 5353 are open.
The system requirements can be found on the Miele homepage in the Service Assistant under Miele@home > Miele app > System requirements for Wi-Fi.
An alternative DNS server on the network is in use, e.g., Cloudflare (1.1.1.1; 1.1.1.2).
Use your Internet provider’s DNS server and register it on your router.
Once the Miele domestic appliance has been successfully added to the Miele app, the IP address of the DNS server on the router can be changed to an alternative DNS server.
Manually switch the DNS server for the Miele domestic appliance in the Miele app to the provider as follows: Tap the Miele domestic appliance in the appliance overview > Tap > Tap Network > Activate Manual network configuration > Network settings.
DNS ad blockers and privacy apps are being run on the mobile device at the same time as the Miele app. These apps stop the Miele app from working properly.
Before adding a new Miele domestic appliance to the Miele app, temporarily deactivate all DNS ad blockers and privacy apps that are running.
The Miele domestic appliance has already been connected to the Miele app in the past. The domestic appliance has not been fully deleted from the app. An attempt to re-add the appliance prompts fault code 3.7.17(.200).
Please contact Miele Customer Service.
A firewall is being used within the network infrastructure.
Configure the firewall to allow Miele domestic appliances to communicate.
A Wi-Fi time limit or Wi-Fi parental controls is/are being used.
Configure the Wi-Fi to allow Miele domestic appliances to communicate without restrictions.
A mesh network infrastructure is being used.
Problems can arise when routers/repeaters from different manufacturers are used together.
Configure the mesh network in line with the manufacturer’s instructions.
“Newly added network participants” have no access to the Internet.
Configure the router so that “newly added network participants” can access the Internet.
There is a technical problem.
If the fault persists, please contact us or book a repair appointment online.
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