zfreddyzzz wroteThank you Ramim91 and rolf.
But my modem/router is installed in another room. So I am not sure how can I get an ethernet cable to the PS5.
I tried to install a repeater next to it and hard-wired it to that repeater, but the problem persisted.
Can you suggest any other solution?
First thing first, try pinging the router through CMD (use a laptop), do so by typing: "ping -t router's Ip" ex: ping -t 192.168.1.1
Check the latency and if there are spikes (1ms -> 1ms -> 100ms -> 1ms). After that connect to the router through ethernet and ping again to check if there are spikes, in case there isn't then it's a wifi issue.
Since you're far from the router you'll most likely face some because everyone in Lebanon is using 2.4ghz WiFi so there's going to be a lot of interfaces causing the spikes. 5ghz "could" fix it, however, an ethernet cable would be a much better solution.
edit: Congratulations on the ps5 btw!