Best way to connect the PS4 to PC's connection

[Zeynel]

My current set up is like this:
router in living room, wifi extender in my room (about 10-15 metres from main router) extending range of main router , ethernet cable connected from wifi extender to pc and ps4 connected to main router with a really bad and laggy connection.

With this current setup I have quite a few lag spikes on my PC even when its connected via ethernet to the wifi extender (TP-Link RE-305) and the PS4's connection is horrible as it has to connect to the 2.4ghz connection which is terrible from the main router. What im wondering is what will be the best way to give my pc and ps4 a good connection with low ping whether it is a new and better wifi extender or a network switch since the wifi extender only has a single ethernet port.

I have tried creating a network bridge by connecting the ps4 and pc using a cablebut it is a hassle since somehow it resets everytime my computer restarts so I have to redo the connection.

I have also used internet connection sharing but this leads to really high ping spikes so im wondering whether the wifi extender is the issue or is there a better setup to have good connection,
Thanks

 

[eibgrad]

Nothing, absolutely nothing, is better than plain ol' ethernet between the client and the router. Everything else is a downgrade. And wireless is the worst.

Of course, ethernet is often impractical. But a good compromise is powerline or MoCA. Have you considered it? Won't work for everyone, but these are two technologies that are vastly underrated imo. It always seems users jump between the two extremes, ethernet and wireless, without considering these other technologies.