What is discord-cdn-fix?

This repository provides a Windows tool intended for users in Russia who find that YouTube, Discord, and Telegram are slow or inaccessible due to ISP-level throttling. The project bundles together two existing open-source utilities, GoodbyeDPI and Zapret, and packages them into an executable that can be run with a single click. The current version is labeled 2.1 Stable. The problem it addresses is known as deep packet inspection, or DPI. Russian internet providers use DPI to detect and slow down traffic to certain foreign services. This tool sends specially crafted network packets that make the DPI system unable to recognize and restrict the traffic, so YouTube videos load in full quality, Discord voice channels connect properly, and Telegram works without needing a proxy server. The install process described in the README is minimal: download the archive from the Releases section, unpack it into a folder with no spaces in its path, and run the appropriate executable as a Windows administrator. If the fix does not seem to work right away, the README suggests running ipconfig /flushdns in a command prompt to clear cached network information. Several limitations are noted. Antivirus software may flag the tool as suspicious because it interacts with low-level network protocols and lacks a paid code-signing certificate. The author says this is a false alarm and notes the code can be reviewed directly. The tool cannot run at the same time as a VPN: any VPN must be switched off for the bypass to function. The tool also only works on Windows, mobile users on Android or iOS would need separate solutions. The README is written entirely in Russian.