I have had this issue since day 1.

wow.exe, when opened, limits the bandwidth of the computer only to 5mbps download and 0.1mbps upload.

Tested with 4 computers on 3 different ISP (AT&T, Comcast, Cox) both wired and wireless.

Other computers on the network are not affected, just the computer with the game installed.

No addons installed and the problem starts when the app opens before logging in.

Downloaded 2 diff versions from warmane. Both has the same issue.