I bought a second-hand RUT240. After factory resetting the device and trying to add it to my RMS account I realized that the previous owner still had it registered in their account as RMS refused to add it to my account.
Based on previous questions asked and answered in this forum, it seems like you guys have to help me.
Side-note; It would be great to have an "RMS re-register" button or similar in the RUT web-ui after which clicked, one would be able to take control of the device and add it to any account.