Hello, I'm taking the liberty of addressing the community experts because I'm encountering obstacles (which I'm sure are trivial for some others) when expanding my WLAN at home and unfortunately I'm too much of a layman to fully understand the subject.

I have a fibre optic connection with an Internet Box Sagemcom P/N: 253640407 WLAN router, which offers a top WLAN there due to the location of the OTO socket in the redoubt, but unfortunately no more in the last corner of the flat. There are also 6 LAN sockets in the reduit, which are always distributed in pairs throughout the entire flat (unfortunately without PoE, but that's a marginal "problem"). So in principle, as far as I have read in my internet research so far, it is a good starting point to connect an access point to the LAN outlets in the rooms to expand my WLAN.
In my case, based on the excellent reviews, I ordered a UAP Lite to expand my WLAN reception at one of the LAN outputs. To do this, I used a LAN cable to connect the Sagem router to LAN socket no. 3 in the kitchenette. In the farthest corner of my flat, I connected the UAP Lite to LAN socket no. 3 (it receives power via the PoE adapter supplied). Then I found the UAP Lite in my wi-fi. From here on, the interaction between the Sagem router and the UAP unfortunately eludes my understanding of IT. I had to set up the UAP via the UniFi app previously installed on my computer, whereby the UAP created a stand-alone WLAN with an SSID+PW determined by me. For me as a layman, I now have 3 WLANs: Sunrise 2.4Ghz, Sunrise 5.0Ghz (as far as I understand it, the clients connect to whichever WLAN they get in better) and the one from the UAP (runs on dual band(2.4/5Ghz) according to the UniFi app).
Now finally my questions:
Can I "mirror" the WLAN (2.4 and 5Ghz) output from the Sagem router on the UAP? If so, what settings do I have to make on the UAP? These are VERY extensive in the app for me as a non-expert,
Does the UAP have to have the same SSID as the Sagem router?
Or do I give the UAP (as already done) any SSID and my clients do the handoff by themselves (or how does it work with the handoff of my clients/cell phones/tablets when I go from the living room to the back room of the flat)?
(Note: I am a simple home user without gaming, only up to 2 clients at the same time in the series/movie stream, and it would be fine if the WLAN reception in the whole flat is sufficiently good and even that I can switch from the couch to the last room during a stream without the stream being interrupted).

Greetings,
Albert

Question

Hello, I'm taking the liberty of addressing the community experts because I'm encountering obstacles (which I'm sure are trivial for some others) when expanding my WLAN at home and unfortunately I'm too much of a layman to fully understand the subject.

I have a fibre optic connection with an Internet Box Sagemcom P/N: 253640407 WLAN router, which offers a top WLAN there due to the location of the OTO socket in the redoubt, but unfortunately no more in the last corner of the flat. There are also 6 LAN sockets in the reduit, which are always distributed in pairs throughout the entire flat (unfortunately without PoE, but that's a marginal "problem"). So in principle, as far as I have read in my internet research so far, it is a good starting point to connect an access point to the LAN outlets in the rooms to expand my WLAN. 
In my case, based on the excellent reviews, I ordered a UAP Lite to expand my WLAN reception at one of the LAN outputs. To do this, I used a LAN cable to connect the Sagem router to LAN socket no. 3 in the kitchenette. In the farthest corner of my flat, I connected the UAP Lite to LAN socket no. 3 (it receives power via the PoE adapter supplied). Then I found the UAP Lite in my wi-fi. From here on, the interaction between the Sagem router and the UAP unfortunately eludes my understanding of IT. I had to set up the UAP via the UniFi app previously installed on my computer, whereby the UAP created a stand-alone WLAN with an SSID+PW determined by me. For me as a layman, I now have 3 WLANs: Sunrise 2.4Ghz, Sunrise 5.0Ghz (as far as I understand it, the clients connect to whichever WLAN they get in better) and the one from the UAP (runs on dual band(2.4/5Ghz) according to the UniFi app).
Now finally my questions:
Can I "mirror" the WLAN (2.4 and 5Ghz) output from the Sagem router on the UAP? If so, what settings do I have to make on the UAP? These are VERY extensive in the app for me as a non-expert,
Does the UAP have to have the same SSID as the Sagem router?
Or do I give the UAP (as already done) any SSID and my clients do the handoff by themselves (or how does it work with the handoff of my clients/cell phones/tablets when I go from the living room to the back room of the flat)?
(Note: I am a simple home user without gaming, only up to 2 clients at the same time in the series/movie stream, and it would be fine if the WLAN reception in the whole flat is sufficiently good and even that I can switch from the couch to the last room during a stream without the stream being interrupted).

Greetings,
Albert

Answer

It is not clear what "mirror" means in this context. To use the Ubiquiti UniFi AP, a controller is required for setup - either as software on a computer or as a hardware controller. Once the APs are set up, the controller is only needed for administration (installation of firmware updates, issuing of vouchers, etc.). You can define several SSIDs on the AP - in any case, it does not make sense to use the same SSID that is on the Sagem. In my opinion, the Sagem should no longer make a WLAN, otherwise the networks can interfere with each other. 
The clients automatically register with the AP with the best reception.

Search

Question about Ubiquiti UniFi AP AC-LITE