got confirmation that my unifi turboed to 800mbps, but the problem is BTU unit not support such connection. need to change the BTU unit, but then the biggest problem is, my contract with unifi alread end last month. So my unifi not applicable for new replacement BTU unit. I only got 2 option :-
1. get new free device, but contract will renewed.
2. purchase own device, then contract wont be renewed.

eh jilake laa TM