Why am I only having problems with Blizzard games?
There is always the possibility that there is a server issue, but we try to post about these problems on the Breaking News bar on our site, the Blizzard Battle.net Application, and in game. We also update our BlizzardCS Twitter as soon as we can when we see server issues. If you suspect this is the problem, check those locations first before trying troubleshooting.
If there are no problems, corrupt data in your game files can cause technical issues with wow specifically. Consider resetting your UI.
If you’re having connection problems with a specific game or service, everything you connect to has a different IP address. It’s very likely that you take a different path through the internet to connect to our servers. Comparing even two different games or services isn’t very useful because of this. When we suspect this type of problem, we’ll ask for connection tests so we can try to find out where the problem is.