If you can't get online at all, you'll need to download a tool on a different device and transfer it via USB.
Since "skachat setevoi draiver dlia kompa" translates to "download network driver for computer," 1. Identify Your Hardware skachat setevoi draiver dlia kompa
Always avoid third-party "driver updater" sites, as they often bundle malware. Use the official manufacturer support pages: If you can't get online at all, you'll