Thanks. I do not think it is JMRI related. I note now my Macbook is on 4.17.6 and exhibiting the same behavior. I think it has something to do with my network since it is two JMRI devices and every phone and tablet I have with Engine Driver.
I'm absolutely stumped. I've done fresh installs of JMRI, fresh installs of Engine Driver, and no luck. I'm tempted to reset my router next, but that is a project. Like I said, everything worked perfectly until today. My Macbook has had JMRI for the longest time and it has worked perfectly. I just decided to switch to an RPi4 (the Macbook is 11+ years old) and it worked perfectly yesterday after I set everything up. Today, I have this error on every device. No clue...
Thanks,
Scott
