data/enus/wow-update-enus-17325.mpq cannot be streamed check network connection.
So i've been getting this error quite a few times. It's really annoying. I found an old forum post which gave me a temporary fix by
running cmd as admin
typing: ipconfig/release ipconfig/renew ipconfig/flushdns
However this is temporary, I'll randomly get DC'd and EVERYTIME i want to open the game i have to do this.

