@glgeek,

I believe that the only reason that you are not seeing the devices available to Homekit is because of that second box that is left unchecked for seeing devices on the main network. The main thing to remember is that if that box is not checked, the communication from your plug to your phone will always be a cloud-based connection. If your phone can see the device on the network, then it will send commands directly through the LAN to the plug. This often doesn't make a difference, but it is something you should be aware of in case your WAN connection fails; that way you know what setting needs to be changed.

Additionally, I do not believe that QoS settings affect devices on the guest network; so you can try to reenable and set this at or above your expected speeds.

Glad you were able to get it all working

  @khurtlwilliams,

Not at all, the smart plugs will actually not be able to connect to a network that has no protections and will require a secured network for use. The only security feature that we sometimes recommend is to change the encryption method, as many smart devices can have difficulty with certain settings, specifically enterprise grade encryptions. The key is simplifying your network configuration, settings, and traffic so that you can be sure that any connections or commands arent being blocked by things like your firewall, parental controls, or just by bad luck with dropped packets. Guest and IoT networks do not often have these features implemented and work better with IoT devices. This is why you may start seeing a general increase in the number of routers receiving support for or coming out with IoT networks.

The devices are as secure as your main network is when they are on the guest network; the guest network simply isolates these devices from the rest of the devices on the network; that way you don't have to worry about malicious activity when guests use your network. 

Feel free to ask if there is a specific concern that you have, or a security setting that you think is the cause

  @Jdub99,

I believe that the Apple Home process can be avoided, it's just awkward due to Apple's requirement that it be Homekit-only setup for 10 minutes. Check out the FAQ where there is a small section on how to skip the Apple Home setup.

If you have an Android device, this will be the easiest method as it cannot use the Apple home setup method.

As for the KP125, make sure that you are performing a full factory reset (10sec) before trying to configure the plugs. The plugs will only keep their setup network alive for about 15 minutes, 10 minutes of which are dedicated to Apple Home setup.