I'm still a bit confused about the before and after, and it's also not clear if your problem is still the same as above. If so, you need to look at what events are actually being generated on Hubitat if you're wondering why the rule isn't triggering. The doc I linked to above, in particular the section I mentioned and linked to directly, should help.
If the device itself isn't working at all on Hubitat (e.g., not commands either), that's a different problem. A DHCP reservation is good, but if the device was added and the IP address changed after that, there could be problems similar to your other topic with similar resolutions possible.
