Hello!
I am not very well versed in this topic, so I am asking for your help.

When connecting internet cable to router and from router using patch cord to PC there is a delay (ping) in online games (peer-to-peer). This problem is solved by directly connecting the internet cable to the PC motherboard. The strangest thing is that the increase in latency is observed only with friends near me (we live a couple of meters away from each other and use the same ISP). In Tekken 8 my latency through the router is 133ms and with a direct connection 17ms if I connect to a friend. With other people this problem does not occur. In games where the connection goes to a dedicated server there are no problems, only in p2p games.

Tried to remove antivirus (Kaspersky), switch off firewall, reset the router to factory settings, helps only if I connect without using the router. The problem must be on my side as my friend has changed his place of residence, PC, router and different internet option (although the same ISP). I have a feeling that one of the settings is causing the problem, but I don't know which one (and what most of them do).

Attached below are examples:

1 - connection via router to a friend

2 - connection via router to a random person

3 - 8 connection via router with different hosts.

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