I have the Fritzbox 7312 and the Fritzbox 7520. I'm currently using the 7520 and I have the 7312 standing around in the closet. Since the 7312 is not mesh capable, I'm considering installing the 7312 again and using the 7520 as a mesh station, so to speak. Would it therefore make sense to use an outdated router as the main station? I would really like to play on the Ps4 via Lan and don't want to buy a repeater first. I have a 100k line, of which only 60% of the transmission power arrives on the Ps4 due to the distance to the router (thick walls, furniture between the router, 10m distance) I would then place the 7520 in a more suitable location.
I don't know how it is with the 7520, but you can configure a FritzBox as a repeater or hotspot. Of course, a cable is less prone to interference than a WLAN connection. Can't you just bridge the 10 meters with a cable? I have about 30 m of cable from the router (FritzBox 6591 cable) to the PC over a total of three floors and two switches - hardly any loss of bandwidth.
Use LAN cables and not ancient routers as WLAN components.
The 7312 is technically 8 years old (reached the end of support 3 years ago). And the WLAN of the 7312 only supports 2.4 GHz n standard 300 Mbit / s gross.
If you use the 7312 as a wireless router, you can only use the n standard with 2.4 GHz.
Mesh always consists of at least 2 Mesh devices (Mesh Master AND Mesh Repeater). If you only run one mesh master it is completely useless, has no advantage at all.
Mesh is only useful for seamless, uninterrupted Wi-Fi roaming, mainly for mobile Wi-Fi devices (tablets and smartphones). You're not walking around the apartment with your PS4.
Mesh does not accelerate the data rate at all, Mesh only provides stable internet for "mobile WLAN devices" that do gymnastics throughout the house.
Leave the 7312 out of the game, which won't improve anything, rather unnecessarily occupying the Wi-Fi channels at 2.4 GHz, so that it clogs the 2.4 GHz Wi-Fi band.
The only thing the 7312 can do is: Set it up as a Wi-Fi repeater (only 2.4 GHz n standard) halfway and hope it will improve the Wi-Fi signal strength and data rate in your room. Or then connect from this FritzBox 7312 to the PS4 via LAN cable (the 7312 then runs as a WLAN receiver for the PS4).
Explained here:
The cable would then run straight through the entire apartment through several doors, which would be much too cumbersome and expensive to implement
Is an argument. I laid the cable behind the baseboards and went through the wall with a thick drill in the appropriate places. But it's fuss.
As for mesh, I've heard it eat up bandwidth. So I would attach a Fritzbox to the appropriate place and configure it as a bridge. So router - (WLAN) - bridge - (LAN) - PC.