Hi Dale,
A couple of things to try:
1) Connect to my demo server (jmri.mstevetodd.com:44444) It is also running 4.17.8, and works fine in my testing.
2) Check your JMRI System console for any ERROR messages or crashes. The symptom of having to restart JMRI indicates a crash to me.
3) Restart JMRI with a new, clean profile, starting ONLY the WiThrottle server. Do not point it to your existing user files. Trying to determine if this is related to data (e.g. something in your roster, panel, etc.)
Please advise results.
--SteveT
