Basic UI - continually disconnects 'waiting for server to become available'

Add-ons UIs
22

Happened to me too after upgrade from 2.5.7 to 2.5.8.

First I had this error all the time and the Basic UI was not usable, after clearing the cache and several restarts it is nearly working. It sill shows the offline thing when a state on the Basic UI changes (intended by clicking there or a real button).

Only thing I saw is that there is always an error coming up when it is showing offline:
[ERROR] [ge.internal.WriterInterceptorExecutor] - MessageBodyWriter not found for media type=text/event-stream, type=class org.glassfish.jersey.med ia.sse.OutboundEvent, genericType=class org.glassfish.jersey.media.sse.OutboundE vent.

23

You should open a new thread rather than reopening a two year old thread. Any problem and therefore solution in this thread is highly unlikely to apply to a two year newer version of OH. As a case in point, Iā€™m not certain OH even used SSE two years ago.