this post was submitted on 11 Oct 2023
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Thanks a lot! So a switch uses Mac adresses and not the DHCP IPs?
In our basement we had two switches. A long ethernet cable goes from the router there, into one switch, and from that one many cables into another switch, and from that one all the cables go seperately to the rooms. Both switches are supplied with electricity.
Now for some reason ethernet doesnt work anymore, even though I used the correct cables and removed the rest as nobody uses ethernet anymore, just two cables, repeater and my cloud server.
I just used one switch, as I had no idea what you would need two switches for? Before there were 8 cables or so, now only 2
"From that one many cables into another switch" as in, you used more than one cable to plug one switch into another? Yeah that won't work. Ethernet doesn't like that kind of thing.
It is valid to connect one switch to another if you need more ethernet ports, but you would connect them with one cable. The best way to do it if possible would be to connect each switch to a port on the router,
Hmm no sorry.
One ethernet cable going down from the router
Two switches, both plugged into power supplies
The ethernet cable goes into the first switch and out go 8 seperate ones. But these dont directly go to the rooms, but to the second switch first, one in one out each and into the rooms.
Yes what you described makes sense. I just removed a switch but now nothing is working which is weird. Will have to test plugging in at each step to see where the failure point is
I think I would have to see a drawing of this.
Understandable, here you go.
I dont get the purpose of switch 2, both are plugged into electricity so seem to be active.
Huh. Yeah that's some bizarre network architecture right there. It shouldn't be necessary to connect two boxes with multiple wires like that, and in fact it shouldn't work at all. You're saying it doesn't work if you remove one of the switches? There's something odd going on there, like these are probably managed switches with some odd configuration happening. If you figure out exactly what it is, let me know, because I think it'd be an interesting learning opportunity.
Yeah... problem is I am the only one caring at all and the rest exists since forever and nobody knows anything. Currently Ethernet didnt work at all so I resetted the router, will check the model numbers of the switches