I recently purchased 1 Echo Dot 2 for me and 1 Echo Dot 3 for my ex mother-in-law. I had to create a new Amazon account for her. I set up both using my Windows 10 laptop. I do not have a smartphone or tablet. I am using the browser Alexa App. The problem is that when I set up my ExMIL's device I used my account. Then realizing that she could access my settings (alarms, music, skills...), I set up her account. Now there are two accounts for one Echo Dot. The problem is that when I deregister my account from her device, I also delete it from mine. When I reregister mine, it is also reregistered on hers. I need help in changing the settings so that I cannot access her account and she cannot access mine.