Published May 22, 2026
Why VPN Stops Working in Russia — and Which Protocols Beat the Blocks
We explain why a regular VPN fails to connect in Russia, what DPI is, and which protocols — AmneziaWG, VLESS Reality, Hysteria2 — continue to bypass the blocks.
Why a regular VPN stops working
Russian ISPs use Deep Packet Inspection (DPI) systems that analyse not just the destination address but also the "shape" of traffic: characteristic headers, packet sizes, and timing patterns. Classic VPN protocols — WireGuard, OpenVPN, IKEv2 — have a recognisable signature, so DPI identifies and blocks those connections.
That is exactly why a VPN that worked fine yesterday suddenly refuses to connect or drops after a few seconds.
What anti-DPI protocols are
The solution is protocols that disguise VPN traffic as ordinary internet traffic. Their signature is either randomised or mimics legitimate traffic, making it impossible for DPI to reliably detect them.
- AmneziaWG — WireGuard with obfuscation: strips the recognisable protocol markers while remaining just as fast.
- VLESS Reality — disguises traffic as a normal HTTPS connection to a real third-party website. One of the most resilient options available.
- Hysteria2 — runs over QUIC, stays stable even on slow or "noisy" channels.
What to do if VPN won't connect
- Switch to an anti-DPI protocol — AmneziaWG, VLESS Reality, or Hysteria2.
- Change server location: sometimes a specific route to a country is blocked while a neighbouring server works fine.
- Still not working? Try another protocol from the list — different networks block differently.
Fiery VPN includes all four protocols in a single subscription and lets you switch between them in one tap — if one stops working, you try another immediately.