Ethernet wiring was forgotten - wiring?

Hello everyone,

we are about to buy a house from the developer. Unfortunately, it was forgotten/saved on to install star-shaped Ethernet cables.

I am not yet sure if I want/can do without it completely.

Therefore, my idea about the wiring and I ask you for constructive criticism:

There is an empty conduit from the basement to the upper floor (which was intended for photovoltaic preparation), I would like to use this to pull a cable (maybe duplex) to the upper floor and then distribute it there with a switch. I want to pull only one cable so that there is still space in the conduit for the future.

From the basement to the lower floor, a hole would have to be drilled and a cable pulled up there as well to distribute it with a switch upstairs.

Do I have a conceptual error in the wiring? Switch cascading should actually make this possible, right?

Do you see huge problems and performance limitations?

Thanks for your help.

The bandwidth will be sufficient for normal use, e.g., streaming on multiple devices, if Cat7 and decent Gigabit switches are used. The response time (ping) will suffer a bit, so if fast-paced online games are to be played, the kids won’t be thrilled about an additional 5-10ms, but it’s still worlds better than Wi-Fi. The question is where you need LAN everywhere and whether maybe 2 cables from the basement to the upper floor are enough. A Wi-Fi access point on the ground floor is usually sufficient if the staircase is open.

Thank you for the help

What are reasonable switches?
I would have taken normal Gigabit TP-Link switches.
Possibly a patch panel in the basement?!

You can start with one WLAN access point in the basement, and if there are problems with the range, you can still put another access point on the upper floor.

That definitely works the way you planned it. I don't really see the problem with latencies with just 3 switches. I think a patch panel is overkill for the 3 cables. Lay the installation cables on a double surface-mounted box and that's it.

Of course it's annoying without it, but with the empty conduit you are better off than many older buildings.

Basically, the sketch is OK. However, I would first write down the current requirements and possibly what will be added in the near future and in which rooms the devices are located or mainly operated.

If really only 2 cables go from the basement to the 2 floors, then you can simply use a double surface-mounted network socket and save the patch panel. If the router has 2 free LAN ports, you don’t need a switch in the basement either.

The problem with switches on the floors is usually that they are not located where the "consumers" are. How does it look there?

You can use TP-Link. I myself am currently with Zyxel. When it comes to access points, I am a fan of Unifi. I currently have a Unifi Access Point AC Lite installed. The Wi-Fi coverage is really good.

How is the telephone wiring actually planned by the developer?

The problem with the switches on the floors is usually that they are not located where the "consumers" are. How does it look there?

Fortunately, that's quite good. I go into the attic and can reach into the drywall walls from above. I had only made the sketch schematically. Sorry.

How is the telephone wiring supposed to be done by the developer?

That's the bad thing about it. There are TAE sockets (sometimes even several) with regular telephone cables in every room. If they had been replaced with Ethernet, everything would have been perfect. Honestly, I don't know what happened there either. :(

If really only 2 cables go from the basement to the 2 floors, then you can simply use a double surface-mounted network socket and skip the patch panel. If the router has 2 free LAN ports, you don’t need a switch in the basement.

That was more schematic as well. I don't yet know if I want to supply 2 or maybe even 3 or 4 rooms upstairs with cables.