Cursor performance issues today Jan 15th, 2025

Support Bug Reports
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1

Cursor gets practically stuck after the first couple of prompts in a brand new chat with a small context window. See sample chat, everything seems greyed out and it just stops responding. I am on the ultra plan.

Screenshot 2026-01-15 at 5.23.57 PM
Screenshot 2026-01-15 at 5.23.57 PM1087×692 28.1 KB

3

I’m jumping in to say I am experiencing very similar performance issues today, though with a slightly different technical profile. While my UI isn’t necessarily greying out, the Agent/Composer is stalling approximately 90% of the time during the “planning next moves” stage.

My Experience Today:

  • Stalling: Using Auto Mode almost always leads to an indefinite hang during planning.

  • Intermittent Success: Static models sometimes work for 1 or 2 turns before failing again.

  • Connectivity Tests: Interestingly, all of Cursor’s internal network connectivity tests pass with a checkmark for me.

Technical Details from my Logs: Despite the successful connectivity tests, my logs are showing severe transport errors that seem to be causing these hangs:

  • Socket Disconnections: Frequent ConnectError: [aborted] Client network socket disconnected before secure TLS connection was established .

  • Streaming Timeouts: Repeated warnings stating “No first token received within 2s… 16s… 32s” .

  • System Errors: Specific ECONNRESET codes appearing during calls to checkQueuePosition and getTeamPrivacyModeForced .

It feels like there might be a broader issue with the streaming backend or how TLS handshakes are being handled today, especially since standard connectivity checks don’t catch it.

Environment: Version 2.3.35 on Windows (win32 x64).

Is anyone else seeing these specific ECONNRESET or “No first token received” errors in their developer logs (Help > Toggle Developer Tools)?

4

Hey, thanks for the report and the detailed logs.

This looks like a server or network issue with streaming. The ECONNRESET and “No first token received” errors point to the connection getting dropped.

As a workaround, try this:

  • Settings > Cursor Settings > search for “HTTP/2” > enable “Disable HTTP/2”
  • Restart Cursor

@Kris_B, can you share your Cursor version (Help > About Cursor) and the Request ID (chat menu in the top right > Copy Request ID)?

If you’re using a VPN or a corporate network, try turning it off temporarily. It often affects streaming connections.

5

Got an update today that fixed it. 2.3.41
:sob:

6

For me, restarting my mac and picking a new chat agent worked.

7

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