sm00thpapa
Very Senior Member
You can't, unless your router specifically reports it. Asus does on their Broadcom models (but not on the Quantenna one). With stock firmware, there's a column for it (if I remember). With my firmware, it will look like this (look for the "M" flag):
View attachment 6961
In system log - wireless log I see a column that states MUBF. Only one device has yes next to it. All other 44 devices say no. Could that be the one using the MU-MIMO feature?