Mi light stopped working

I had a milight wifi controller running well with 2 controllers for a few years. I changed my wifi router, and went to update the settings on the milight WiFi controller but am not having any luck. It doesn’t seem to connect to my router :-x

I am using V5/6 of the limitless bridge tool which is very different from the older version I used to use… so maybe I am setting something up wrong, and noen of the documentation has been updated in a long time.

I am open to upgrading my hardware as well, if I need to.

thanks.