I got that problem as well several times during the day and several things worked to get back on the game again. You should try this before start removing addons, or re-installing etc.
When starting the battle.net and then world of Warcraft, do not click on other stuff until you are logged in proper!
- Run the battle.net as Administrator.
If it doesn’t work - Restart your comp and then battle.net. Then start worldofwarcraft
This worked for me, but may not work for you. But, I really hope it does so we can enjoy this awesome game!
Other posts
- 10.2.7 Dark Heart Content Update and World of Warcraft Remix: Mists of Pandaria Event
- Shaping the Dreamsurge stopped giving cache
- Season 4 Week 2 - this is awakened - this gives the good gear
- Awakened only when it is unlocked
- Transform Gear into Tier this week
- 10 PIECES OF SEASON 4 OUTDOOR GEAR THIS WEEK!
- Patch 10.2.6 Splash Screen Featuring Mist of Pandaria Remix
- Tusk of Mannoroth cosmetic in Remix Pandaria
- NEW HOLIDAY EVENT Coming 13th-19th of July.
- 6 Veteran Gear this week from outdoor content
