I am a software pack rat, but I don't have Weatherlink for mac so I ordered a copy of the software. I am going to move my files to a flash drive that I need to keep. When the disk arrives, then totally delete Weatherlink from the imac. Iuse WeatherLink to make adjustments to the transcievers as necessary. for example I have two Wind units and one wireless anemometer transmitter. It sometimes gets nastier in the early and late winter and we have freezing rain. the top unit freezes and then I can use the bottom if necessary, just switch the transciever on or off.
So When the software shows up, after deleting and removing all traces, then reload Weatherlink and see what happens. I can alway run a cable from my Envoy to my wifes Win10 unit and do the deed that way. Now in WIndows 10 using parallels on this machine, I can run WeatherLink on that, but not Weatherdisplay. However on the Mac side, I can run weather display and weather cat but not Weatherlink. ARGHHHHHHH
The problem is with java and how weatherlink uses it. Sometimes a good killing solves things. I am interested on final version of High Sierra and how all the architecture of filing works out. No , I won't be the first out to grab a new copy, going to wait a bit.