I spoke with support about this on saturday, I’m stuck on the 4th light.
I followed the Mac laptop setup instructions and the support engineer I spoke to added my rachio manually to my account, but my rachio is not able to activate - hence being stuck on the 4th light.
Since then, I noticed that the mac address of the device does NOT match the mac on the sticker - nor does the name of the device (based on its wifi access point) match the one that was added to my account → I suspect that this is because the sticker is simply wrong.
Is it possible to look up the correct serial number based on the actual mac address for my device?