Grok 4.6 Extra High Fast keeps disconnecting

Support Bug Reports
,
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Grok 4.6 Extra High Fast model appears to be disconnecting at various times these past few days. Made sure vpn is turned off, reconnected ethernet and restarted the wifi as well.

Steps to Reproduce

Simply work in agent mode and model will briefly call tools and work before stopping.

Expected Behavior

Agent work normally and doesn’t disconnect.

Operating System

Windows 10/11

Version Information

Version: 3.20.17 (user setup)
VS Code Extension API: 1.128.0
Commit: 0c32194e3fb5ffaced9fb36430b860ec301e1fc0
Date: 2026-09-12T03:16:10.634Z
Layout: IDE
Build Type: Stable
Release Track: Default
Electron: 42.10.0
Chromium: 148.0.7778.280
Node.js: 24.18.1
V8: 14.8.178.38-electron.0
xterm.js: 6.1.0-beta.291
OS: Windows_NT x64 10.0.26200

For AI issues: which model did you use?

Grok 4.6 Extra High Fast

For AI issues: add Request ID with privacy disabled

Request ID: 800cd92b-ba66-4602-bfd5-8546777f5f37

Does this stop you from using Cursor

Sometimes - I can sometimes use Cursor

7

Hey @felipedipoi, thanks for the report - your connection’s fine, so you can stop resetting the router/VPN/ethernet.

What’s happening: Grok 4.6 Fast is failing on that specific conversation once it gets large, and since the failure sticks to the conversation, retrying in the same chat keeps hitting it - which looks like a disconnect. It’s not anything you misconfigured, and it’s an issue we’re tracking.

To get moving now: start a new chat, or switch that task to Grok 4.6 with Fast off (or Composer 2.5 / GPT-5.6).

If you can, one quick check that’d help us: in the stuck chat, switch to Grok 4.6 (Fast off), send “continue,” and tell me if it goes through - if not, drop the new Request ID (three-dot menu → Copy Request ID).

8

Thanks for the quick reply. Yes that fixed the issue. Although it is confusing for the context usage part as it looked from my end that it just about used 25% of the context. But thank you for the tip.