Hey.
Thanks for the answer.
Now i’m a little bit confused. After i add the “demo.thing” and writing my first post in this Thread, i looked again on my openhab, and it was online.
Now it is working alway. Doesn’t mater, if i add it by *.things file, or by openhab webpage.
I have no clue, what i did the first 10, 15 tries different…