# An unexpected error occurred on our servers. Please try again, or contact support if the issue persists **URL:** \ **Category:** Bug Reports\ **Tags:** early-access, macos, chat\ **Created:** [January 26, 2026, 10:05am UTC](https://forum.cursor.com/t/an-unexpected-error-occurred-on-our-servers-please-try-again-or-contact-support-if-the-issue-persists/149909 "2026-01-26T10:05:12Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Chanutpong\_Promsin](https://avatars.discourse-cdn.com/v4/letter/c/e95f7d/32.png) [@Chanutpong\_Promsin](https://forum.cursor.com/u/Chanutpong_Promsin)\ **Post date:** [January 26, 2026, 10:05am UTC](https://forum.cursor.com/t/an-unexpected-error-occurred-on-our-servers-please-try-again-or-contact-support-if-the-issue-persists/149909/1 "2026-01-26T10:05:12Z")
### Where does the bug appear (feature/product)? Cursor IDE ### Describe the Bug my setup is ```auto macbook pro M3 macOS sequoia 15.6 VPN zscaler ``` always got error (Previously, the issue happened intermittently, but today (Jan 26, 2026) it has been occurring all day, even after HTTP/2 was disabled.) ```auto Internal Error An unexpected error occurred on our servers. Please try again, or contact support if the issue persists. ``` Request details ```auto Request ID: b98a84ce-0d32-41a9-b981-41f05ab08bf1 [internal] read Unknown system error -96 LTe: [internal] read Unknown system error -96 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 just ask agent or ask mode, then error ### Operating System MacOS ### Version Information Version: 2.4.21 VSCode Version: 1.105.1 Commit: dc8361355d709f306d5159635a677a571b277bc0 Date: 2026-01-22T16:57:59.675Z (3 days ago) Build Type: Stable Release Track: Early Access Electron: 39.2.7 Chromium: 142.0.7444.235 Node.js: 22.21.1 V8: 14.2.231.21-electron.0 OS: Darwin arm64 24.6.0 ### Does this stop you from using Cursor Yes - Cursor is unusable ---
**Author:** ![deanrie](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/deanrie/32/1263_2.png) [@deanrie](https://forum.cursor.com/u/deanrie)\ **Post date:** [January 26, 2026, 11:48am UTC](https://forum.cursor.com/t/an-unexpected-error-occurred-on-our-servers-please-try-again-or-contact-support-if-the-issue-persists/149909/3 "2026-01-26T11:48:30Z")
Hey, thanks for the report. “Unknown system error -96” on macOS usually points to a network-level issue. In your case, Zscaler (or its TLS inspection) might be blocking connections to the agent API. Try this: 1. Test without VPN Temporarily disable Zscaler and check if the agent works. This will confirm whether Zscaler is the cause. 2. Change DNS (if you can’t disable VPN) Other users with similar issues fixed it by switching DNS to Quad9: - System Settings → Network → your network → DNS Servers → add `149.112.112.112` - Restart Cursor and test again Context: there’s a known routing issue via Cloudflare CDN for some regions and providers: [[Known Issue] HTTP/2 Connection Failures with SSLV3\_ALERT\_HANDSHAKE\_FAILURE](https://forum.cursor.com/t/149477) 1. Network Diagnostics Settings → Network → Run Diagnostics. Send a screenshot of the results. This will show exactly where the connection drops. Let me know if the no-VPN test or the DNS change helped. ---
**Author:** ![Chanutpong\_Promsin](https://avatars.discourse-cdn.com/v4/letter/c/e95f7d/32.png) [@Chanutpong\_Promsin](https://forum.cursor.com/u/Chanutpong_Promsin)\ **Post date:** [January 27, 2026, 2:03am UTC](https://forum.cursor.com/t/an-unexpected-error-occurred-on-our-servers-please-try-again-or-contact-support-if-the-issue-persists/149909/4 "2026-01-27T02:03:49Z")
Testing without VPN : it work without any problem Change DNS (still enable VPN) : even changed DNS still not work and this network diagnostics image more info : after i test for a while it switching between - The connection stalled. Please try again. - An unexpected error occurred on our servers. Please try again, or contact support if the issue persists - Connection failed. If the problem persists, please check your internet connection or VPN ![image](https://us1.discourse-cdn.com/cursor1/original/3X/a/3/a31f3275e64572d114fedd0ba9592f86ae0625aa.png) ![image](https://us1.discourse-cdn.com/cursor1/original/3X/9/7/978485d1bcda617e0af64134673c69b89f9ed719.png) ---
**Author:** ![deanrie](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/deanrie/32/1263_2.png) [@deanrie](https://forum.cursor.com/u/deanrie)\ **Post date:** [January 27, 2026, 4:19am UTC](https://forum.cursor.com/t/an-unexpected-error-occurred-on-our-servers-please-try-again-or-contact-support-if-the-issue-persists/149909/5 "2026-01-27T04:19:11Z")
I see McAfee Web Gateway is intercepting SSL traffic to Cursor. This is a classic corporate MITM proxy issue. Issue: The McAfee Cloud proxy (`c1200488389.wgcs.mcafee-cloud.com`) is replacing Cursor’s certificates. That can cause SSE responses to get buffered and make ping slow. Fixes: 1. Use Cursor without VPN or McAfee (if possible) 2. Ask IT to whitelist Cursor (best long-term fix) 3. Try disabling HTTP/2 Changing DNS won’t help because the problem is SSL interception, not routing. Let me know if your IT team can add Cursor to the bypass list. That should fix it permanently. ---
**Author:** ![system](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/system/32/99069_2.png) [@system](https://forum.cursor.com/u/system)\ **Post date:** [February 18, 2026, 4:19am UTC](https://forum.cursor.com/t/an-unexpected-error-occurred-on-our-servers-please-try-again-or-contact-support-if-the-issue-persists/149909/6 "2026-02-18T04:19:51Z")
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