{"type": "article", "title": "MCP connection errors explained: 404 on /sse, 406 Not Acceptable, session 400s, 402", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/mcp-connection-errors-explained-404-on-sse-406-not-acceptable-session-400s-402", "original_source": "https://dev.to/tanod/mcp-connection-errors-explained-404-on-sse-406-not-acceptable-session-400s-402-dik", "published": "2026-10-08T23:01:40+00:00", "accessed": "2026-10-08", "id": "mcp-connection-errors-explained-404-on-sse-406-not-acceptable-session-400s-402"}