Thanks for your post and welcome to the forums. It's really great having you on board with us in the Community
I'm sorry to hear you were having an issue playing things via Multiroom streaming.
Checking things today, I can see you've actually spoken to the team via the phone who have gotten things working for you.
If you have any issues going forward, pop back and let us know.
Tech fan? Have you read our Digital life blog yet? Check it out