MCP won't connect

[isaiahbjork (Isaiah)]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

There is a bug with the MCP connections. I restarted my macbook multiple times, restarted cursor multiple times but still won’t connect to the servers. The main one that always disconnects is playwright, then it’s always a struggle to get it back working as it will randomly turn green again. This has been happening in previous versions as well so i don’t think its version specific. I have even cloned the playwright mcp repo and ran it from the source code using node instead of npx and it still doesn’t work consistently.

Steps to Reproduce

Add playwright mcp server to mcp.json and enable it

Expected Behavior

It should display the tools and stay connected 24/7

Screenshots / Screen Recordings

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.5.11
VSCode Version: 1.99.3
Commit: 2f2737de9aa376933d975ae30290447c910fdf40
Date: 2025-09-05T03:48:32.332Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Darwin arm64 24.2.0

Does this stop you from using Cursor

No - Cursor works, but with this issue

[deanrie]

Hey, thanks for the report. Can you check the logs? To do this, go to View → Output, select MCP Logs from the dropdown menu, and review the logs. Also, try clearing the package cache:

macOS/Linux: ~/.npm/_npx
Windows: %LocalAppData%/npm-cache/_npx

Then restart Cursor.