How does the OFFLINE detection work? I have multiple Denon HEOS devices at home and they are randomly marked ONLINE or OFFLINE - regardless of their actual state.
Specifically: I have a HEOS 7 setup as the HEOS Bridge. Through it, I have multiple players and groups available. One of them is a HEOS 3, which is currently listed as OFFLINE - although the Denon HEOS app on my smartphone lists it and I am even able to play music on it. Additionally, I am able to ping the device’s IP address. So from my point of view, this Thing as online and available as it gets.
Unfortunately it is still displayed as OFFLINE in OpenHAB. I have checked the IP address and serial number listed under the properties and they match my actual HEOS player. Besides the “have you tried turning it off and on again?”-approach, I haven’t tried much.
Oddly, my Inbox shows 3 new things, which have been discovered: My group of 2 HEOS 1 players and the corresponding players in that group - although I have already added them as a Thing. It does list the player which is shown as OFFLINE as ignored - if I add it, it is added with a lengthy ID (which is hexadecimal instead of decimal), and still shown as OFFLINE