ipv6

IPv6 networking and dual-stack issues

Networking Fix WebSocket Handshake Timeout in Chrome on Ubuntu 22.04

Chromium WebSocket handshake timeouts on Ubuntu 22.04: 'websocket connection failed' or 'opening handshake timed out' in Chrome/Brave, works in Firefox. Causes HTTP/2 Extended CONNECT (RFC 8441), IPv6, systemd-resolved. Diagnose with chrome-net-export, fixes included.

#websocket
#chromium
#ubuntu
#networking
#ipv6
#http2

1 answer• 1 view

01/11/2026, 04:29 PM