# Blog

What's new in TunnelHQ, and practical guides to keeping VPN servers up.

  

Hysteria2

Guide, Nov 2, 2026

### Hysteria2 protocol explained: QUIC, auth, Brutal, Salamander

How Hysteria2 works, from the official docs: QUIC transport, HTTP/3 auth, Brutal vs BBR, Salamander, port hopping, the hysteria2:// URI and real checks.

ST Muntaha, 11 min read

More: https://tunnelhq.com/blog/hysteria2-protocol-explained/

Product update, Oct 20, 2026

### October 2026: AI assistants, tunnel groups and sign-in by email

Connect Claude, ChatGPT, Cursor or VS Code by signing in, sort tunnels into groups, and sign in with a code we email you.

TunnelHQ team, 3 min read

More: https://tunnelhq.com/blog/october-2026-update/

Product update, Sep 28, 2026

### September 2026: Uptime monitoring, heartbeats and 16 more alert channels

Website, keyword, ping and port checks in beta, heartbeats for scheduled jobs, DNS checks, expiry alerts and new places to send alerts.

TunnelHQ team, 3 min read

More: https://tunnelhq.com/blog/september-2026-update/

Product update, Aug 26, 2026

### July and August 2026: better search, longer timelines and status at a glance

Ranked ⌘K search, health timelines up to 90 days, per-region results and live status counts above the tunnel list.

TunnelHQ team, 2 min read

More: https://tunnelhq.com/blog/summer-2026-update/

WireGuard

Guide, Apr 22, 2026

### Why WireGuard port monitoring misses real outages

A WireGuard server on UDP/51820 looks healthy to port monitors even when every client fails. What's happening on the wire — and how to catch it.

Mehmood Ali, 7 min read

More: https://tunnelhq.com/blog/why-wireguard-port-monitoring-fails/

OpenVPN

Guide, Apr 22, 2026

### OpenVPN: TLS key negotiation failed to occur within 60 seconds

You Googled the error. Monitoring says green. Users cannot connect. Eight things that actually cause it, ordered from most to least common.

Mehmood Ali, 7 min read

More: https://tunnelhq.com/blog/openvpn-tls-key-negotiation-failed/

V2Ray

Guide, Apr 22, 2026

### Monitoring V2Ray subscription URLs in production

Subscription URLs sound simple until you run a fleet. Stale caches, partial deliveries, dead servers in healthy bundles. A practical checklist.

T. Hussian, 7 min read

More: https://tunnelhq.com/blog/monitoring-v2ray-subscription-urls/

Source: https://tunnelhq.com/blog/