Instead of a firmware update, they should simply produce the 4-way switch that everybody here is asking for.

Hi - 

I am trying to install a 4 way circuit with two HS-210 3-way switches and two dumb 4-ways in the middle. Having trouble and found this 5 year old thread online so I thought I would ask for help. 

I have successfully installed several Kasa 2-way and 3-way switches before, but this is my first attempt at a 4-way. 

All 4 paddles all work perfectly. The problem is that it usually takes two taps on the button in the app to turn the light on and off. That tells me that each smart switch can't see what the other one is doing and doesn't know whether the circuit is on or off. 

I have tried installing each end as the primary and then pairing the other. I have also tried installing one end to the wifi by itself as a "single" three way and leaving the other end unpaired and "dumb". I have also uninstalled one of the smart switches and reinstalled a dumb switch. None of these ideas work. 

In all scenarios, the paddles work just like they are supposed to but it takes a couple of attempts in the app to get the lights on or off. 

This is an improvement in that I can turn the lights on and off remotely now, but since the app can't tell definitely whether the circuit is on or off, I can't fully automate these lights like I had intended. 

Is there something I am missing? The ony thing I can think of is that the two ends of the circuit are petty far apart - about 80 feet - could that be interfering with how they are paired?

A four way smart switch right in the middle would seriously solve this problem!

  @septer012 

Any thoughts on whether this woud work for the 3 way dimmer switches (KS230 Kit)?

  @Chicago_SH 

I installed two Kasa 3-way switches and left two manual 4-way switches for a 5-way configuration. I connected them to the Kasa app as paired 3-way switches.

The app does not always report the correct status of on or off. Also, if the switch is turned off at the first installed Kasa 3-way switch, none of the other switches can turn the lights on.

Any ideas?

  @board4mic Thank you! I was afraid that I would have to do a micky-mouse to make my 4 way work. Nice!

board4mic wrote

update.  i replaced both of the 3-way switches with TP smart switches and left the 4-way "dumb" switch in the circuit.  This set up is working perfectly for me.

I have a 4 way setup and switched the two 3 ways to smart switches and they work fine and as expected. However I really wish I could use smart dimmers instead of just on / off switches. 

Wish there was a way beyond buying 2 kits. 

  @septer012 

Would I still be able to install the HS210 if my circuit looks like the one below with the Load and Line in the same box #1?

  @Chicago_SH 

Would I still be able to install the HS210 if my circuit looks like the one below with the Load and Line in the same box #1?

  @ScottMan Any chance that you can provide a bit more detail or diagram on how to connect the satellite in the 4-way switch position, with assumption that the other main/satellite are wired as normal 3 way? I currently have working as a 3-way, with the 4-way disconnected (ie wires connected together to just pass through), but that is the most critical switch in the system and would LOVE to get this to work correctly. Your post is the first time i have seen anyone get it to work correctly. Much appreciated. 

@JHTOR as fate woud have it, I was just installing another set of 3-ways today and had TP Link's wiring diagram pulled up on my computer - so I modified it for this configuration.  The main thing you have to be sure to get right is being consistent on your traveler #1 and #2 wires.  Traveler #2 (black below) carries the load and needs to be tied to the Traveler #2 screw on all three switches. On the "4-way," you should have two wires tied to each screw.  Hope this helps!