I've tplink usb AC adapter with 1200Mbit 5ghz AC 4antennas and with 3Streams.
The TX-RX just 300Mbit,but the connection is 975Mbit/80Mhz/3S/SGI
I tried with a 2 streams 867Mbit wireless adapter and the issue same.
RX-TX test is just 280-300Mbit.
The CCQ is between 91%-100%
I tested with the btest.exe.
Any suggestion? Thanks.