An antivirus app is active on the mobile device (e.g., McAfee Security).
This problem affects Miele domestic appliances that are entitled to a free 125-week additional warranty.
Check whether an antivirus app is active on the mobile device.
Deactivate the antivirus app while entering the warranty extension.
Once the warranty extension has been completed, the antivirus app can be reactivated.
The Extended Warranty is displayed correctly in the Miele app.
