Cursor CLI cannot log in - MacOS, Zscaler

Describe the Bug

Cannot log in to cursor-cli - get messsage:

Login failed or timed out.

Steps to Reproduce

➜ ~ cursor-agent login

Login failed or timed out.

After running cursor log in, browser window is open and I log in via:

Log in to Cursor CLI?
You’re currently logged in as:
almir.mutapcic
Please only log in if you just came from the Cursor CLI.

All set! Feel free to return to the CLI.
For any issues, reach out at [email protected]

But in Terminal have:

Login failed or timed out.

Expected Behavior

Should be logged in.

Operating System

MacOS

Current Cursor Version (Menu → About Cursor → Copy)

cursor-agent -v
2025.08.09-d8191f3

Additional Information

Using Edge browser. Also tried Chrome. Mac OS with corporate Zscaler on.

Does this stop you from using Cursor

Yes - Cursor is unusable