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 you’re having connection problems with only certain games and services, ever…
Blizzard discontinued their support documentation for network tests, but if you provide a PingPlotter or WinMTR, some members in the forum can still read them.