Hi newbie here. Im looking for router recommendation. I need a strong long range router due to my house floor plan. It s 3 storey and the prob is the internet setting/connection is in the store room which located on the ground floor. Im currently using unifi 100mps package. Tested wifi is always 30mps +/- even at ground floor. I have tp link tl-wa855re setup in the 1st floor as an extender to 2nd floor. By the it reaches 2nd floor is 10mps or less. Thanks.

Btu: onu alcatel lucent i240g
router: rg innatech rg 4332