Just so i understand …
"It’s restarting … ONLY after watching Youtube ? "
if so, then that has been a reported issue (search Memory Leaks or Low Memory)
Will have to wait be next firmware release from WD to see if it resolves the problem.
Or, you could try Firmware Rollback … and see if the problem is still there in firmware 2.01.86
Here’s my guide: http://community.wd.com/t5/WD-TV-Live-Streaming/2-02-32-Firmware-no-longer-allows-content/td-p/781923
