Thanks everyone for your excellent input. I did finally call Oppo Digital tech support the other day. (My player does have the latest firmware). The tech explained that these players use a YouTube app and it's not a direct connection to the web which would explain why YouTube works fine on a desktop, laptop, windows cell phone, etc. He said that YouTube could have just implemented an update to the app or something like that which can for a short time cause problems. He said to give it a few more days. Today (Sat 2/6) it seems to be back working properly. Thanks.