My 990D soundbar just disconnected from my Samsung tv and I got a message on my phone saying "hub offline" from Smart things, well it wasn't offline and has always been connected via HDMI eARC and not WiFi. 

The soundbar won't work or reinitialise and is stuck on HDMI eARC loop when I press the remote. I can't get into any settings on it.

 I've been online with a Samsung expert for 2hrs and they remotely connected but they were unable to fix it. 

It's 6 months old, Samsung are sending an engineer but I was just wondering if anyone else had this issue or knows a work around?