# 2.4.x version can't use agent behind company proxy

**URL:** <https://forum.cursor.com/t/2-4-x-version-cant-use-agent-behind-company-proxy/150142>\
**Category:** Bug Reports\
**Tags:** chat, installation\
**Created:** [January 28, 2026, 5:03am UTC](https://forum.cursor.com/t/2-4-x-version-cant-use-agent-behind-company-proxy/150142 "2026-01-28T05:03:22Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![chouzz](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/chouzz/32/96223_2.png) [@chouzz](https://forum.cursor.com/u/chouzz)\
**Post date:** [January 28, 2026, 5:03am UTC](https://forum.cursor.com/t/2-4-x-version-cant-use-agent-behind-company-proxy/150142/1 "2026-01-28T05:03:22Z")

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### Where does the bug appear (feature/product)?

Cursor IDE

### Describe the Bug

After upgrade to curosr IDE 2.4.x version it unable to use agent mode behind company network(with proxy setup and http1.1), as I can see, send message in agent will update the title, but doesn’t get answers, and reverting to 2.3.41 works fine.

### Steps to Reproduce

- Install latest cursor behind company net work
- send message in agent view
- Can’t get response

### Expected Behavior

should get response like 2.3.41 version

### Operating System

Windows 10/11

### Version Information

cursor IDE 2.4.21

### For AI issues: which model did you use?

Any model will met the problem

### Does this stop you from using Cursor

Yes - Cursor is unusable

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<div class="post-metadata">

**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 28, 2026, 6:12am UTC](https://forum.cursor.com/t/2-4-x-version-cant-use-agent-behind-company-proxy/150142/3 "2026-01-28T06:12:58Z")

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Hey, thanks for the report. It looks like a known issue with HTTP/2 and corporate proxies in version 2.4.x.

Try this workaround:

1. Cursor Settings \> search for “HTTP/2” \> switch HTTP Compatibility Mode to HTTP/1.1
2. Restart Cursor
3. Test the Agent again

If it still doesn’t work:

- Settings \> Network \> Run Diagnostics (send a screenshot)
- Specify which proxy is being used (Zscaler, another?)

Similar issue: [Connection issue - Agent, chat, nothing works](https://forum.cursor.com/t/connection-issue-agent-chat-nothing-works/150048)

Let me know if disabling HTTP/2 helped.

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<div class="post-metadata">

**Author:** ![chouzz](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/chouzz/32/96223_2.png) [@chouzz](https://forum.cursor.com/u/chouzz)\
**Post date:** [January 28, 2026, 6:26am UTC](https://forum.cursor.com/t/2-4-x-version-cant-use-agent-behind-company-proxy/150142/4 "2026-01-28T06:26:45Z")

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Hi, it’s already HTTP/1.1.

And Run Diagnostics shows:

 ![Cursor_yg0AbrYVzb](https://us1.discourse-cdn.com/cursor1/original/3X/8/7/87fa79061bd6b8294ba0d59aeebef1b18f168c57.png)

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**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 19, 2026, 6:26am UTC](https://forum.cursor.com/t/2-4-x-version-cant-use-agent-behind-company-proxy/150142/5 "2026-02-19T06:26:49Z")

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