I have just been nominated for Eejit of the Year. When I rebuilt the network, at one point I had to force my iMac to use a specific internal IP address and I did that by manually entering the appropriate IP. So even though I assigned the hardware to use the correct address, I failed to remember to put it back the way it was. WeatherCat is looking for a static IP address that is created with a DHCP reservation in the router. When I remembered the folly of my ways, WeatherCat resumed its normal, excellent gathering and disseminating of the data. One problem solved. Next in line, please (don't forget to vote for me in the aforementioned award ceremonies coming later this year to a ballot box near you).
And May the Fourth be with you.