Hello all,

I am trying to replace 2 of my 3-way switches with a pair of HS210s.  I understand the typical 3 way switch has 4 wires (1 black for common ,1 black and 1 red for travel and 1 ground), but both of my 3-way switches only have 3 wires and what odd is that it has 1 black for common, 1 white and 1 red for travelers and that's it (yes it's the white that is on the traveler connector).  It's the same on both switches.  Is this configuration supported by HS210?  No matter how I wired them, they don't have any power (meaning no blinking orange/green wifi light).  When I put the old "dumb" switches back, it works and it works correctly like any other 3 way switches.  Is this even possible?  

What I've done so far is mimic what's currently working meaning using white and red for travelers (and I did make sure they're not crossed), use the hot/black wire for common, installed another white and ground wires from the white and ground bundled in the gang box (this was done on both sides), but it's not working.

Can you please help?

Thanks

HT