Where does the bug appear (feature/product)?
Cursor IDE
Describe the Bug
It seems to frequently show reconnecting or just stops…
I added Network Diagnostics here… could be high load on your servers?
Steps to Reproduce
Running chats with Composer-1.5
Expected Behavior
not stop
Operating System
Windows 10/11
Version Information
Version: 2.6.20 (user setup)
VSCode Version: 1.105.1
Commit: b29eb4ee5f9f6d1cb2afbc09070198d3ea6ad760
Date: 2026-03-17T01:50:02.404Z
Build Type: Stable
Release Track: Default
Electron: 39.8.1
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.26200
For AI issues: which model did you use?
composer-1.5
Additional Information
Cursor Network Diagnostic Results
DNS: Success
Logs:
[2026-03-19T08:12:43.259Z] Host: api2.cursor.sh
[2026-03-19T08:12:43.260Z] Servers: 127.0.0.1
[2026-03-19T08:12:43.260Z] Resolved to 44.214.52.148 in 1ms
[2026-03-19T08:12:43.340Z] Resolved to 44.214.52.148 in 0ms
[2026-03-19T08:12:43.375Z] Resolved to 44.214.52.148 in 0ms
[2026-03-19T08:12:43.397Z] Resolved to 44.214.52.148 in 1ms
[2026-03-19T08:12:43.457Z] Host: api2.cursor.sh
[2026-03-19T08:12:43.457Z] Servers: system
[2026-03-19T08:12:43.457Z] Resolved to 52.203.129.191, 18.214.129.71, 54.243.226.154, 107.23.239.248, 34.235.86.15, 18.209.130.136, 3.225.147.202, 35.153.22.159 in 2ms
[2026-03-19T08:12:43.473Z] Resolved to 52.203.129.191, 18.214.129.71, 54.243.226.154, 107.23.239.248, 34.235.86.15, 18.209.130.136, 3.225.147.202, 35.153.22.159 in 0ms
[2026-03-19T08:12:43.514Z] Resolved to 52.203.129.191, 18.214.129.71, 54.243.226.154, 107.23.239.248, 34.235.86.15, 18.209.130.136, 3.225.147.202, 35.153.22.159 in 0ms
[2026-03-19T08:12:43.546Z] Resolved to 52.203.129.191, 18.214.129.71, 54.243.226.154, 107.23.239.248, 34.235.86.15, 18.209.130.136, 3.225.147.202, 35.153.22.159 in 0ms
[2026-03-19T08:12:43.546Z] Result: true
HTTP/2: Success
Logs:
[2026-03-19T08:12:43.156Z] Start
[2026-03-19T08:12:43.599Z] Host: api2.cursor.sh
[2026-03-19T08:12:43.599Z] Protocol: h2
[2026-03-19T08:12:43.599Z] Result: true in 443ms
SSL: Success
Logs:
[2026-03-19T08:12:43.157Z] Start
[2026-03-19T08:12:43.809Z] URL: https://api2.cursor.sh/
[2026-03-19T08:12:43.810Z] Status: 200
[2026-03-19T08:12:43.810Z] IP: 44.214.52.148
[2026-03-19T08:12:43.810Z] Issuer: C=US; O=Amazon; CN=Amazon RSA 2048 M01
[2026-03-19T08:12:43.810Z] Name: api2.cursor.sh
[2026-03-19T08:12:43.810Z] AltName: DNS:api2.cursor.sh, DNS:prod.authentication.cursor.sh, DNS:*.api2.cursor.sh
[2026-03-19T08:12:43.810Z] DNS Time: 4ms
[2026-03-19T08:12:43.810Z] Connect Time: 206ms
[2026-03-19T08:12:43.810Z] TLS Time: 206ms
[2026-03-19T08:12:43.810Z] Result: true in 653ms
API: Success
Logs:
[2026-03-19T08:12:43.175Z] Start
[2026-03-19T08:12:43.959Z] Result: true
Ping: Success
Logs:
[2026-03-19T08:12:43.192Z] Sending ping 1
[2026-03-19T08:12:43.615Z] Response: ‘ping’ in 423ms
[2026-03-19T08:12:43.615Z] Sending ping 2
[2026-03-19T08:12:43.971Z] Response: ‘ping’ in 356ms
[2026-03-19T08:12:43.971Z] Sending ping 3
[2026-03-19T08:12:44.202Z] Response: ‘ping’ in 231ms
[2026-03-19T08:12:44.202Z] Sending ping 4
[2026-03-19T08:12:44.371Z] Response: ‘ping’ in 169ms
[2026-03-19T08:12:44.371Z] Sending ping 5
[2026-03-19T08:12:44.543Z] Response: ‘ping’ in 172ms
[2026-03-19T08:12:44.543Z] Result: true
Chat: Success
Logs:
[2026-03-19T08:12:43.209Z] Starting stream
[2026-03-19T08:12:43.959Z] Response: ‘foo’ in 728ms
[2026-03-19T08:12:44.932Z] Response: ‘foo’ in 973ms
[2026-03-19T08:12:45.934Z] Response: ‘foo’ in 1002ms
[2026-03-19T08:12:46.954Z] Response: ‘foo’ in 1020ms
[2026-03-19T08:12:47.932Z] Response: ‘foo’ in 978ms
[2026-03-19T08:12:48.936Z] Result: true
Agent: Success
Logs:
[2026-03-19T08:12:43.229Z] Starting stream
[2026-03-19T08:12:43.231Z] Pushing first message
[2026-03-19T08:12:43.598Z] Response: ‘foo’ in 367ms
[2026-03-19T08:12:44.107Z] Pushing next message
[2026-03-19T08:12:44.277Z] Response: ‘foo’ in 679ms
[2026-03-19T08:12:44.784Z] Pushing next message
[2026-03-19T08:12:44.943Z] Response: ‘foo’ in 666ms
[2026-03-19T08:12:45.454Z] Pushing next message
[2026-03-19T08:12:45.617Z] Response: ‘foo’ in 674ms
[2026-03-19T08:12:46.125Z] Pushing next message
[2026-03-19T08:12:46.284Z] Response: ‘foo’ in 667ms
[2026-03-19T08:12:46.284Z] Result: true
Marketplace: Success
Logs:
[2026-03-19T08:12:43.100Z] Host: marketplace.cursorapi.com
[2026-03-19T08:12:43.398Z] Response in 298ms
[2026-03-19T08:12:43.398Z] Response: 200
[2026-03-19T08:12:43.398Z] Response Type: cors
[2026-03-19T08:12:43.398Z] Server: null
[2026-03-19T08:12:43.398Z] Result: OK in 298ms
Authentication: Success
Logs:
[2026-03-19T08:12:43.109Z] Host: prod.authentication.cursor.sh
[2026-03-19T08:12:43.341Z] Response: 200 in 232ms
Authentication UI: Success
Logs:
[2026-03-19T08:12:43.158Z] DNS lookup: authenticator.cursor.sh
[2026-03-19T08:12:43.278Z] Resolved authenticator.cursor.sh to 104.18.35.233 in 1ms
Cursor Tab: Success
Logs:
[2026-03-19T08:12:43.159Z] DNS lookup: api3.cursor.sh
[2026-03-19T08:12:43.260Z] Resolved api3.cursor.sh to 104.18.19.125 in 1ms
Agent Endpoint: Success
Logs:
[2026-03-19T08:12:43.160Z] DNS lookup: agent.api5.cursor.sh
[2026-03-19T08:12:43.296Z] Resolved agent.api5.cursor.sh to 44.197.141.31 in 1ms
Codebase Indexing: Success
Logs:
[2026-03-19T08:12:43.161Z] DNS lookup: repo42.cursor.sh
[2026-03-19T08:12:43.313Z] Resolved repo42.cursor.sh to 18.204.81.105 in 1ms
Downloads: Success
Logs:
[2026-03-19T08:12:43.145Z] Host: downloads.cursor.com
[2026-03-19T08:12:43.517Z] Response: 403 in 372ms
CDN: Success
Logs:
[2026-03-19T08:12:43.155Z] Host: cursor-cdn.com
[2026-03-19T08:12:43.488Z] Response: 404 in 333ms
Does this stop you from using Cursor
Sometimes - I can sometimes use Cursor