Repeated disconnections

Support Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Cursor keeps disconnecting repeatedly again. Network tests all pass as per usual. This is a chronic issue showing up every week or so.

Steps to Reproduce

There’s no pattern I can detect on my side. Tried restarting the IDE, different models, different modes, disabling anti-virus and firewall, and even upgrading my account. No difference.

Expected Behavior

Stable connection is expected.

Screenshots / Screen Recordings

disconnection.jpg
disconnection.jpg746×137 19.5 KB

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.2.43 (user setup)
VSCode Version: 1.105.1
Commit: 32cfbe848b35d9eb320980195985450f244b3030
Date: 2025-12-19T06:06:44.644Z
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 10.0.26200

Does this stop you from using Cursor

Yes - Cursor is unusable

3

Hey, thanks for the report. This is a known connection issue. Please try the following:

  1. Disable HTTP/2 (most common fix):

    • Open Cursor Settings with CMD/CTRL+,

    • Search for “HTTP/2”

    • Enable “Disable HTTP/2”

    • Restart Cursor

  2. Run network diagnostics:

    • Cursor Settings → Network → Run Diagnostics

    • Share the results if the issue persists

This helps most users on networks with partial HTTP/2 support. Reference: Constant connection error

4

Thanks @jokerfool for the suggestion. Please try that.

Since you’re on version 2.2.43, check if Cursor 2.3 is available (Help > Check for Updates) - it includes stability fixes for connection issues, though it may take few days to roll out to all users.

If the update isn’t available yet or disconnections persist after upgrading, please share screenshots from Cursor Settings > Network > Run Diagnostics

5

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