Sorry for answering in English because we're not offering technical support with other languages. Could you please confirm that it's also same with Full VPN mode enabled?

OK  My english is not good   .but  i use mudfish VPN    i will  open  battle.net but  he can't connection

Are you meaning that it's still same with Full VPN mode enabled?  If then please try to pick a different node and test.

sometime I can use mudfish and playing overwatch but  sometime  I can use mudfish .. I think maybe  mudfish steup no contorl....