Reviews

Do not get confused with your reMarkable account username and password, use your password found on your device.

Your username is always 'root'.
Your password is found on your tablet under settings > copyrights & licensing > in a body on the lower right.
If you have two IP addresses listed that means you are connected to USB and a Wi-fi network.

ReMarkable Paper Tablet vs Sony DPT-RP1 Digital Paper System