Repeatedly says connection issue when my connection is fine

[user1530 (Aaron)]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Repeatedly says “connection failed. if the error persists, please check your internet connection or VPN”. Yesterday I had to delete all data and reinstall the app to get it to work but that isn’t feasible when I have work to do.

Steps to Reproduce

I honestly couldn’t tell you. Mightve been from trying to update cursor but not sure. thats a seperate glitch where it won’t update no matter what I do, i get new models but it says cursor is running in the background even if it isn’t, and if it is, it’s the updater so impossible loop

Expected Behavior

I am supposed to get an agent response instead i get this.

Screenshots / Screen Recordings

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.2.23 (system setup)
VSCode Version: 1.105.1
Commit: b3c95a7981bb3057526f1f865e8c307a9911ce00
Date: 2025-12-15T03:10:57.241Z
Electron: 37.7.0
Chromium: 138.0.7204.251
Node.js: 22.20.0
V8: 13.8.258.32-electron.0
OS: Windows_NT x64 10.0.26100

Does this stop you from using Cursor

Yes - Cursor is unusable

[STF (Stefan)]

same

[deanrie]

Hey, thanks for the report.

This is a known network issue with HTTP/2. Please try these quick steps:

1. Settings CTRL+, → search for HTTP/2 → enable “Disable HTTP/2” → restart Cursor and test in a new chat
2. Settings → Network → Run Diagnostics → send a screenshot
3. Do you use VPN, proxy, or SSL inspection like Zscaler? Try without them or on a different network
4. Run test without extensions: cursor --disable-extensions and try a new chat

Please send:

• 2-3 recent Request IDs from the error window via Copy Request Details
• Errors from Help → Toggle Developer Tools → Console

Helpful threads with confirmed fixes:

• Constant connection error
• Connection failed for all new chats
• I can’t create new chats

Also see docs on common issues: Common Issues | Cursor Docs

[STF (Stefan)]

disabling mcp servers fixed this for me

[user1530 (Aaron)]

I have tried this a few times, it worked before but it isn’t working when I do it again, making cursor unusable.

Request ID: a95fef2c-de3b-45fa-9791-be61790fa7cb
Request ID: c01a152e-1431-4457-b8f5-3bad9d2c2dcc