If you are unable to log in on your navigation device, you might need to update the software of your device . We have recently upgraded the requirements for the creation of TomTom accounts and passwords according to improved security standards. To comply with this, your navigation device needs to have the latest software installed.
For Wi-Fi devices, you need to be logged in to update your device, but you can only use a password of up to 12 characters until you have installed the latest software update. If you have changed the password to something with more characters, reset your password and then update your device.