Thanks for the detailed reply. I ran the full sequence exactly as described:WP Admin → Royal MCP → Settings → Reset OAuth StateSettings → Permalinks → Save ChangesDeleted the connector in Claude.ai, cleared browser cache, waited over an hourRe-added the connector with only the MCP URL — no headers, Advanced left emptyTried connecting many times over the course of an hour, with both OAuth client optionsStill failing with “Couldn’t connect to the server” every time. Latest references:ofid_7100088dfdd046f8ofid_4a6138807e32126bofid_0c11a2d631afe1e6Note: this fails at the connection stage — I never even reach the /authorize consent screen, so it doesn’t look like the stale client_id path anymore. Claude Desktop with mcp-remote + API key continues to work fine against the same endpoint.Anything else worth checking, or should I just stay on Claude Desktop?
