@golfgeek 

Try switching your wireless encryption from WPA to WPA2 or WPA2 to WPA, set up the device then switch the wireless encryption back to what it was.

Make sure the wireless password that is being used is also the correct by using a smartphone to forget and connect back to the wireless network you are trying to set up the smart devices with.

@golfgeek How did you solve the duplicate IP addresses?

Hal

@hal4829 I restarted devices with duplicate IPs...some HS2xx switches and some other devices.  My router has a page that let's me sort all connected devices by IP, so I could identify which devices were  having the issue.  I've had some power outages since then and it hasn't created any more problems - just have to be patient for everything to come back up.

I'm using DHCP for IP address assignment, however, I could use fixed IP's to help lower the likelihood of this happening, but that's a pain, and it hasn't been necessary since that first problem.

@golfgeek If the switches are not connecting, how do you know if there are duplicate IP addresses?

@hal4829 My router shows a list of all IP addresses that have been assigned to devices, even if those devices are not connected.  You'll have to see if your router can do that.  My router keeps track of devices that have connected before, and those devices will have a default name (like HS200 or something), and those device names can be renamed on the router to something more friendly (for example, "Office Light") - I typically rename them on the router so I know which device is which.  Since I had previously renamed all of the devices on my router, I could see which specific devices had duplicate IPs.

@golfgeek  how would one go about cleaning up these duplicated IPs? I have an ASUS RT-AX82U router.