So what? I rather had that 216mbps. That 300mbps (2 stream)  or 450mbps (3 stream)  is "syok sendiri" settings with 40mhz, which shouldn't be used in crowded environment and in auto mode, it won't be enabled if there is neighbour detected on the sideband.  216mbps is the max speed with 3 stream with 20mhz.

guys..need help here..been using the Huawei router with stock firmware for some time now..all was good before this..starting from yesterday..wifi keep getting disconnected from my devices..any idea what causes it?change wifi channel already as well as reinstalling the wifi adapter driver already and it is still dropping..all windows device would drop connection at the same time but mobile devices wouldnt..