Pihole on pc and router but they are both plugged into a switch

[Niot_z]

Hi,

I am not quite as experienced as others here with networking etc. I have done my research but can't seem to find a solution or get a hang of how it all works. I live on a University Campus where my internet comes from 1 ethernet socket out of the wall. I have to request my device to be listed at some service where they probably whitelist my MAC-address of the connected device.
The problem is: I have a switch linked up to this 1 (and only) socket, so I can connect more devices. I have a router plugged into the switch, and my PC. My first problem is is that the PC and router are not in 1 network and therefore these devices don't communicate. Is there a way to fix this other than plugging my PC into my router? I purposefully did not do this because it heavily bottlenecks my internet speeds on my PC.

My second question is whether I can have the pihole for both the PC and the router with this setup. Also Should I put the pihole in the switch or in the router?

Just to be clear the scheme is as following:

1. my wall socket -> Switch -> PC & Router

[Bucking_Horn]

This seems related to routing rather than Pi-hole.
Your campus admin should have further advice.

That said:
Try plugging your Router into the Ethernet socket, then connect your switch to the router and plug your PC, Pi-hole and other devices into the switch.

That way, all devices would connect through your router, and thus be part of its network.

[Niot_z]

Thank you very much for your response. The problem however is that I cant/dont want to connect my PC to my router, because it is a (not so good) router that cant handle Gbit/s whereas My PC has 1Gbit/s now. Rewiring to the solution you mentioned would take my pc's speed from 1Gbit/s to 100Mbit/s, so it is a route I wouldn't want to take.
I will try mailing my campus admin for the other routing issues so thanks for that advice!