[Mitigated] HTTP/2 Connection Failures with SSLV3_ALERT_HANDSHAKE_FAILURE, primary affecting users in Ukraine

condor · January 16, 2026, 12:45am

If the cause is on the network level its likely not going to help if you uninstall.

However you can try it. Make sure to copy the config folders as a backup so you dont have to lose settings.

Please try with the folders mentioned in here.

vitaliy-dushepa · January 15, 2026, 5:18am

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Cursor don’t work few days. I reinstalled Cursor but that did not help.
Cursor updated succesfully to the last version - 2.3.35
Windows 11 Home, 24H2

Request ID: bfe11e41-9b60-4fde-8baa-858b7cbc1e66

Steps to Reproduce

Any request from any model don’t work.

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.3.35 (user setup)
VSCode Version: 1.105.1
Commit: cf8353edc265f5e46b798bfb276861d0bf3bf120
Date: 2026-01-13T07:39:18.564Z
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

Colin · January 15, 2026, 8:18am

Hey @vitaliy-dushepa!

No sign of that Request ID on our side, which typically means the request didn’t make it to our servers.

Can you try running Cursor’s network diagnostics and let us know the results?

vitaliy-dushepa · January 15, 2026, 9:34am

1). I have made diagnostics in Cursor AI:

- DNS, HTTP/2, SSL, Marketplace work,

- for API, Ping, Chat, Agent I have an error message:

“ConnectError: [internal] 311168:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:..\..\third_party\boringssl\src\ssl\tls_record.cc:486:SSL alert number 40”
2). I asked advise from LLM, it proposed to change “http/2“ on “http/1.1“ in Cursor settings.
It helped, now it works.
Do I need (in future) return to “http/2“ or just use “http/1.1“?

Joonel · January 15, 2026, 4:04pm

Broken HTTP/2.0 is a widespread issue that exists from like 2.1.50 Cursor version.

Cursor team doesn’t mind it, so do I by using Codex instead of Cursor agent lol

Sergii_Tsekhmister · January 15, 2026, 11:20am

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Chat with any models doesnt work
314368:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:....\third_party\boringssl\src\ssl\tls_record.cc:486:SSL alert number 40
[internal]

Connection failed. If the problem persists, please check your internet connection or VPN

Steps to Reproduce

just start ide, and chants not working

Expected Behavior

neew usual working behavior

Operating System

Windows 10/11

Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.3.35 (system setup)
VSCode Version: 1.105.1
Commit: cf8353edc265f5e46b798bfb276861d0bf3bf120
Date: 2026-01-13T07:39:18.564Z
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 10.0.19044

For AI issues: which model did you use?

all models

For AI issues: add Request ID with privacy disabled

Request ID: 3daeec33-0b3d-4ff0-8c71-dcb5db783e1e
Request ID: 2f67a257-aa4c-4d44-9874-b2a0e560563f

Additional Information

how fix this?

Does this stop you from using Cursor

Yes - Cursor is unusable

deanrie · January 15, 2026, 11:32am

Hey, thanks for the report. This is a known issue with HTTP/2 and the SSL handshake.

Try this:

App Settings Ctrl+, → search for “HTTP/2” → enable “Disable HTTP/2” → restart Cursor
Check if chat works after that

If it didn’t help, or if you want to dig deeper:

Cursor Settings → Network → Run Diagnostics → send a screenshot
Are you using a VPN, proxy, or a corporate network with Zscaler? Try on your home internet without them

Related thread: SSLV3_ALERT_HANDSHAKE_FAILURE

Let me know if disabling HTTP/2 helped.

Sergii_Tsekhmister · January 15, 2026, 12:14pm

The 1, 2 helped, it works, thank you

Dmitrij_Harchenko · January 23, 2026, 9:38am

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

No answer from Agent. That is second day the same.
An unexpected error occurred on our servers. Please try again, or contact support if the issue persists.Request ID: 87fffb6f-41a2-4900-b2aa-3232cbad47c4
[internal] 28673202505920:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:../../third_party/boringssl/src/ssl/tls_record.cc:486:SSL alert number 40

LTe: [internal] 28673202505920:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:../../third_party/boringssl/src/ssl/tls_record.cc:486:SSL alert number 40

at kmf (vscode-file://vscode-app/tmp/.mount_CursorRmlOJ6/usr/share/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9095:38337)
at Cmf (vscode-file://vscode-app/tmp/.mount_CursorRmlOJ6/usr/share/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9095:37240)
at $mf (vscode-file://vscode-app/tmp/.mount_CursorRmlOJ6/usr/share/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9096:4395)
at ova.run (vscode-file://vscode-app/tmp/.mount_CursorRmlOJ6/usr/share/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9096:8170)
at async qyt.runAgentLoop (vscode-file://vscode-app/tmp/.mount_CursorRmlOJ6/usr/share/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34190:57047)
at async Wpc.streamFromAgentBackend (vscode-file://vscode-app/tmp/.mount_CursorRmlOJ6/usr/share/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34239:7695)
at async Wpc.getAgentStreamResponse (vscode-file://vscode-app/tmp/.mount_CursorRmlOJ6/usr/share/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34239:8436)
at async FTe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/tmp/.mount_CursorRmlOJ6/usr/share/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9170:14575)

Steps to Reproduce

Write any request to Agent.

Expected Behavior

Recive answer

Operating System

Linux

Version Information

Version: 2.4.21
VSCode Version: 1.105.1
Commit: dc8361355d709f306d5159635a677a571b277bc0
Date: 2026-01-22T16:57:59.675Z
Build Type: Stable
Release Track: Default
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Linux x64 6.8.0-90-generic

For AI issues: which model did you use?

All

Additional Information

I from Ukraine and now is trouble with energy. So I use mobile internet. But there is no problem before 22.01.2026.

Does this stop you from using Cursor

Yes - Cursor is unusable

Activator · January 23, 2026, 9:32am

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

An unexpected error occurred on our servers. Please try again, or contact support if the issue persists.

Steps to Reproduce

Request ID: 897aff0f-669d-495d-85b1-6d9f64c7dded
[internal] 279040:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:....\third_party\boringssl\src\ssl\tls_record.cc:486:SSL alert number 40

LTe: [internal] 279040:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:....\third_party\boringssl\src\ssl\tls_record.cc:486:SSL alert number 40

at kmf (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9095:38337)
at Cmf (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9095:37240)
at $mf (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9096:4395)
at ova.run (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9096:8170)
at async qyt.runAgentLoop (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34190:57047)
at async Wpc.streamFromAgentBackend (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34239:7695)
at async Wpc.getAgentStreamResponse (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34239:8436)
at async FTe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9170:14575)

Operating System

Windows 10/11

Version Information

Version: 2.4.21 (user setup)
VSCode Version: 1.105.1
Commit: dc8361355d709f306d5159635a677a571b277bc0
Date: 2026-01-22T16:57:59.675Z
Build Type: Stable
Release Track: Default
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Windows_NT x64 10.0.26100

For AI issues: add Request ID with privacy disabled

Request ID: 897aff0f-669d-495d-85b1-6d9f64c7dded
[internal] 279040:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:....\third_party\boringssl\src\ssl\tls_record.cc:486:SSL alert number 40

LTe: [internal] 279040:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:....\third_party\boringssl\src\ssl\tls_record.cc:486:SSL alert number 40

at kmf (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9095:38337)
at Cmf (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9095:37240)
at $mf (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9096:4395)
at ova.run (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9096:8170)
at async qyt.runAgentLoop (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34190:57047)
at async Wpc.streamFromAgentBackend (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34239:7695)
at async Wpc.getAgentStreamResponse (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34239:8436)
at async FTe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/c:/Users/User/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9170:14575)

Does this stop you from using Cursor

Yes - Cursor is unusable

Sergey_Kaliberda · January 23, 2026, 11:09am

I have the same problem.

artemn · January 23, 2026, 1:32pm

The same issue for me started to appear for me again. Before in December I managed to resolve it by reinstalling the cursor with clearing all the local data.
If I disable HTTP/2 it helps, but would appreciate the real fix so Ukrainian users can use http/2. Thanks.

yadong_wang · January 24, 2026, 7:57am

Describe the Bug

Request ID: 801b9cc1-f411-481c-b2e2-8f9c9c1d43f7
{“error”:57,“details”:{“title”:“Provider Error”,“detail”:“We’re having trouble connecting to the model provider. This might be temporary - please try again in a moment.”,“isRetryable”:true,“additionalInfo”:{},“buttons”:,“planChoices”:},“isExpected”:true}
[resource_exhausted] Error
LTe: [resource_exhausted] Error
at kmf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9095:38337)
at Cmf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9095:37240)
at $mf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9096:4395)
at ova.run (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9096:8170)
at async qyt.runAgentLoop (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34190:57047)
at async Wpc.streamFromAgentBackend (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34239:7695)
at async Wpc.getAgentStreamResponse (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34239:8436)
at async FTe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9170:14575)

Steps to Reproduce

i dont know.

Operating System

MacOS

Version Information

Version: 2.4.21 (Universal)
VSCode Version: 1.105.1
Commit: dc8361355d709f306d5159635a677a571b277bc0
Date: 2026-01-22T16:57:59.675Z (1 天前)
Build Type: Stable
Release Track: Default
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Darwin arm64 24.5.0

Does this stop you from using Cursor

Yes - Cursor is unusable

Andrii_Vedmid · January 24, 2026, 1:13am

I have the same issue

Request ID: f6ffeced-1b31-49bd-a4ff-607c10d3e46c
[internal] 1322851775168:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:../../third_party/boringssl/src/ssl/tls_record.cc:486:SSL alert number 40

LTe: [internal] 1322851775168:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:../../third_party/boringssl/src/ssl/tls_record.cc:486:SSL alert number 40

at kmf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9095:38337)
at Cmf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9095:37240)
at $mf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9096:4395)
at ova.run (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9096:8170)
at async qyt.runAgentLoop (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34190:57047)
at async Wpc.streamFromAgentBackend (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34239:7695)
at async Wpc.getAgentStreamResponse (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34239:8436)
at async FTe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9170:14575)
at async Oi (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:32991:3808)

MacOS

Version: 2.4.21 (Universal)
VSCode Version: 1.105.1
Commit: dc8361355d709f306d5159635a677a571b277bc0
Date: 2026-01-22T16:57:59.675Z
Build Type: Stable
Release Track: Default
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Darwin arm64 25.2.0

Tried with different models, doesn’t work

This is different issue

Request ID: 298715cd-145e-49d7-9636-dad6aa3c963f
[internal] 1322851775168:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:../../third_party/boringssl/src/ssl/tls_record.cc:486:SSL alert number 40

LTe: [internal] 1322851775168:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:../../third_party/boringssl/src/ssl/tls_record.cc:486:SSL alert number 40

at kmf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9095:38337)
at Cmf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9095:37240)
at $mf (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9096:4395)
at ova.run (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9096:8170)
at async qyt.runAgentLoop (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34190:57047)
at async Wpc.streamFromAgentBackend (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34239:7695)
at async Wpc.getAgentStreamResponse (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:34239:8436)
at async FTe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:9170:14575)
at async Oi (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:32991:3808)

Colin · January 24, 2026, 11:00am

A post was split to a new topic: Que faire face à cette erreur récurrente?

Kirow · January 24, 2026, 1:00pm

HTTP/2 not working more than month I guess…
using HTTP/1.1

Devs, please do something

Sergiy_Procenko · January 24, 2026, 6:18pm

Describe the Bug

Request ID: d994c526-2f13-4a2a-a826-0695d9e7e3be
[internal] 277760:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:....\third_party\boringssl\src\ssl\tls_record.cc:486:SSL alert number 40

LTe: [internal] 277760:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:....\third_party\boringssl\src\ssl\tls_record.cc:486:SSL alert number 40

at kmf (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9095:38337)
at Cmf (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9095:37240)
at $mf (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9096:4395)
at ova.run (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9096:8170)
at async qyt.runAgentLoop (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34190:57047)
at async Wpc.streamFromAgentBackend (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34239:7695)
at async Wpc.getAgentStreamResponse (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34239:8436)
at async FTe.submitChatMaybeAbortCurrent (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9170:14575)

Steps to Reproduce

Hello Cursor Team,

I am experiencing a persistent issue with the AI Chat (Ctrl+L) and Cursor Tab features immediately after the latest update today. Before the update, everything was working perfectly.

The Issue:
Every request to the AI results in a “Connection Error”.
Error: SSLV3_ALERT_HANDSHAKE_FAILURE (SSL alert number 40).
Request ID: c433530c-1583-4318-aa13-f4809475e477 (and others).

My Environment:

OS: Windows 11 (AMD64)
CPU: AMD Ryzen
Editor Version: Latest (Updated today)

Troubleshooting Steps Performed (None worked):

Checked “Http: System Certificates” (Tried both ON and OFF).
Checked “Http: Proxy Support” (Set to OFF).
Set environment variable NODE_TLS_REJECT_UNAUTHORIZED=0.
Performed a clean boot of Windows (Disabled non-Microsoft services).
Checked for conflicting software (No “Nahimic”, “GameFirst”, or “cFosSpeed” running).

Critical Diagnostic Findings:
I ran a Python diagnostic script (net_check.py) using ssl and socket libraries on the SAME machine.

Result: Python connects to google.com via TLS 1.3 successfully.
Issuer: Google Trust Services (WE2).
This proves my network/router is NOT blocking SSL. The issue is isolated strictly to the Cursor internal network stack (Electron/Node).

Logs / Stack Trace:
[internal] 263040:error:10000410:SSL routines:OPENSSL_internal:SSLV3_ALERT_HANDSHAKE_FAILURE:....\third_party\boringssl\src\ssl\tls_record.cc:486:SSL alert number 40
at kmf (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9095:38337)
at Cmf (vscode-file://vscode-app/c:/Program%20Files/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:9095:37240)

Additional Info:
I also noticed that sometimes the integrated terminal crashes with PowerShell Exit Code: -1073741819 (0xC0000005 Access Violation), which might be related to how the new version handles network hooks on my specific hardware configuration.

Please investigate. The editor is currently unusable for AI tasks.

Operating System

Windows 10/11

Version Information

Version: 2.4.21 (system setup)
VSCode Version: 1.105.1
Commit: dc8361355d709f306d5159635a677a571b277bc0
Date: 2026-01-22T16:57:59.675Z
Build Type: Stable
Release Track: Default
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Windows_NT x64 10.0.26200

Does this stop you from using Cursor

Yes - Cursor is unusable

Joop_B_Zoetemelk · January 25, 2026, 9:48am

Hello I am from Belgium and experience the same issue.

I just subscribed yesterday and use the paid Pro-subscription. My version of Cursor is 2.4.21.

After the download, I have been working with Cursor successfully for a couple of hours. Then I stopped for lunch and afterwards, I got the error “Connection failed”.

I have disabled HTTP/2 for all requests and indicated HTTP/1.1. However the message “Connection failed” in the chat remains.

I am working with a Windows 11 laptop.

When I run Diagnostic, the result is:

DNS is fine

SSL - read ECONNRESET

API - [aborted] read ECONNRESET

Ping - [aborted] read ECONNRESET

Chat - [aborted] read ECONNRESET

Agent - [aborted] read ECONNRESET

Marketplace - Failed to fetch

This is very disappointing because as developer, you have to be able to rely on your platform.

Colin · January 25, 2026, 10:33am

Hey @Joop_B_Zoetemelk

Are you seeing SSLV3_ALERT_HANDSHAKE_FAILURE? If not, it’s likely a different error.

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[Mitigated] HTTP/2 Connection Failures with SSLV3_ALERT_HANDSHAKE_FAILURE, primary affecting users in Ukraine

Where does the bug appear (feature/product)?

Describe the Bug

Steps to Reproduce

Operating System

Current Cursor Version (Menu → About Cursor → Copy)

Does this stop you from using Cursor

Where does the bug appear (feature/product)?

Describe the Bug

Steps to Reproduce

Expected Behavior

Operating System

Current Cursor Version (Menu → About Cursor → Copy)

For AI issues: which model did you use?

For AI issues: add Request ID with privacy disabled

Additional Information

Does this stop you from using Cursor

Where does the bug appear (feature/product)?

Describe the Bug

Steps to Reproduce

Expected Behavior

Operating System

Version Information

For AI issues: which model did you use?

Additional Information

Does this stop you from using Cursor

Where does the bug appear (feature/product)?

Describe the Bug

Steps to Reproduce

Operating System

Version Information

For AI issues: add Request ID with privacy disabled

Does this stop you from using Cursor

Describe the Bug

Steps to Reproduce

Operating System

Version Information

Does this stop you from using Cursor

Describe the Bug

Steps to Reproduce

Operating System

Version Information

Does this stop you from using Cursor

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