@BSD If you want to control all your devices from one account, then just install them as you have been. If you want seperate control then log out of your existing account and log in with a new...

@jcozn2 Your Welcome. I have read that after iPhone update, people having this problem, and airplane mode fixed it.

@jcozn2 Put your iPhone in airplane mode, then turn on WiFi, try the install.

@Lythman I did not see a picture of what wires are in the upstairs box, so I don't know if there is a neutral up there. I assumed not, that why I said to only install one 210.

@Lythman Put the upstairs dumb switch back in, you only need 1 of the 210 switches for it to work. On the downstairs 210 using the original 3 wires, put the white and red to the travelers, Black to...

@Meshman They did away with that setting. Now by default remote control is on.