@Anapxist
1. Killer's Software Suite is known for its poor performance and issues when trying to stream. Please download the package from
the vendor's page , completely uninstall all Killer NIC items and run the installer, choosing to only install the Hardware Drivers.
2. In Windows, we recommend that "Game Mode" be enabled. Game Mode can be enabled via the Windows "Settings" app, under Gaming > Game Mode.
3. You are running an old version of OBS Studio (30.0.0). Please update to version 30.2.3 or newer by going to Help -> Check for updates in OBS or by downloading the latest installer from the
downloads page and running it.
4. Binding to a manually chosen IP address is rarely needed. Go to Settings -> Advanced -> Network and set "Bind to IP" back to "Default".
5. Multiple Game Capture sources are usually not needed, and can sometimes interfere with each other (scene 'Игры'). You can use the same Game Capture for all your games. If you change games often, try out the hotkey mode, which lets you press a key to select your active game. If you play games in fullscreen, use 'Capture any fullscreen application' mode.
If still having issues after making ALL of those changes, post a new log.