What is the most sensitive/powerful repeater?

Question

Computer networks

Yes, yes, yes, I understand that you have already prepared to pour this bucket on the repeaters, but still.
The MikroTik RB2011UiAS-2HnD-IN router distributes wi-fi to a three-story house (700kv), located on the second floor by the window. At the same time, at the farthest point of the second floor, it holds 40 Mbps. On the third floor, a cheap tp-link tl wa850re is enough or almost enough, but on the first floor there are problems. Tplink itself can not always connect to Mikrotik, but you need at least a stable 6-8 Mbps. Moreover, there is only one staircase and it is located so well that many times the reflected signal simply does not have a chance to get to the first floor. I looked at the market a lot, but I don’t know what to choose. We need a very sensitive proven repeater (wi fi analyzer for android shows -70 -80 dbm), which can break through and work stably with Mikrotik. Well, or another beautiful solution to the problem. The cable is considered, but it is not possible to lay, and the requirements are not so high (no one plays games, extra 10 ms of ping means nothing). An option with an antenna on the street is also being considered, but here instead of two links there will already be three, which is also not good.

Answer 1

Launch LAN and set up access points using sockets and powerline adapters. But it's better to make a cable. IMHO.

Answer 2

As already mentioned above - it's better to somehow get an ethernet between 3 floors. How - already at your choice and depending on the configuration. If the wiring allows - powerline adapters, if it doesn't - drag a twisted pair. Ideally, I would hang 3 ubikuchi ats pro points, power them through the switch and hide it in a secluded place. At the exit, you can get almost seamless roaming, ala stomp from the 3rd floor to the first one and talk on Skype with a second dip when dropping from one point to connecting to a new one. it will be possible to spread points across channels, etc. With repeaters, you will always have the hidden node problem.

Answer 3

A 3-story office building with monolithic ceilings of about the same area as your house - WiFi does not break through ceilings AT ALL - the laptop directly under or above the access point does not catch anything. In addition, mobile phones practically do not work in the basement.
The building is an office building - so there was a sufficient number of computer wires, there was something to connect to via an access point on each floor, and there are no problems with guest WiFi. I join the previous speakers: only wires between floors. As an option - on the second floor, put the AR in client mode, on the first AR in AP mode - pass the wire through the ventilation duct or next to the pipes: the repeater is ready, normal coverage of the 1st floor.
And for a cellular repeater, additional wires were pulled along the shaft next to the power wires and along the shaft next to the sewer, to the antenna on the roof - along the ventilation shaft.

Answer 4

By installing a powerful repeater, you run the risk of damaging something :) indoor antennas are not in vain limited in power. Your building simply must have low-current shafts between floors - lay the wire through them. On repeaters you will not build any stable network.