We recently moved and want to reconnect our outdoor lights to our Kasa EP40 smart plugs. They seem to still be tied to our old wifi network and cannot connect to our new one.

I tried holding both outlet buttons down and got to the point of both lights blinking quickly between orange/amber and green. Tried the next step of holding the buttons down for 5-10 seconds to finish the reset. Nothing happened. 
 

Should I assume it is ready to connect to our new wifi network and go thru the set up phase?  Can I remove all the old data from my Kasa app?  If so, how?
 

Thanks for any help!