Problem when running jupyter notebook in a remote server

Bug Reports
1

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

When I tried to use the latest version of cursor to run the jupyter notebook in a remote server, it shows:

15:54:43.751 [info] Starting Kernel (Python Path: ~/.conda/envs/ML/bin/python, Conda, 3.9.23) for ‘~/home/proj/ChangW/test.ipynb’ (disableUI=false)
15:54:43.754 [info] Check & install missing Kernel dependencies for ~/.conda/envs/ML/bin/python, ui.disabled=false for resource ‘~/home/proj/ChangW/test.ipynb’
15:54:43.762 [info] Process Execution: ~/.conda/envs/ML/bin/python -c “import ipykernel;print(‘6af208d0-cb9c-427f-b937-ff563e17efdf’)”
15:54:44.092 [error] Failed to change kernel, re-throwing Error: Forbidden
> at new n (/home2/~/.cursor-server/extensions/ms-toolsai.jupyter-2025.3.0-universal/dist/extension.node.js:98:4480)
> originalException = Error: Forbidden
15:54:44.094 [warn] Error occurred while trying to start the kernel, options.disableUI=false Error: Forbidden
> at new n (/home2/~/.cursor-server/extensions/ms-toolsai.jupyter-2025.3.0-universal/dist/extension.node.js:98:4480)
> originalException = Error: Forbidden
15:54:44.094 [warn] Kernel Error, context = start Error: Forbidden
> at new n (/home2/~/.cursor-server/extensions/ms-toolsai.jupyter-2025.3.0-universal/dist/extension.node.js:98:4480)
> originalException = Error: Forbidden
15:54:44.102 [info] Process Execution: ~/.conda/envs/ML/bin/python -c “import ipykernel;print(‘6af208d0-cb9c-427f-b937-ff563e17efdf’)”
15:54:44.233 [info] Dispose Kernel ‘~/home/proj/ChangW/test.ipynb’ associated with ‘~/home/proj/ChangW/test.ipynb’
15:54:44.234 [error] Error in notebook cell execution Error: Forbidden
> at new n (/home2/~/.cursor-server/extensions/ms-toolsai.jupyter-2025.3.0-universal/dist/extension.node.js:98:4480)
> originalException = Error: Forbidden
15:54:44.234 [error] Error in execution (get message for cell) Error: Forbidden
> at new n (/home2/~/.cursor-server/extensions/ms-toolsai.jupyter-2025.3.0-universal/dist/extension.node.js:98:4480)
> originalException = Error: Forbidden

Steps to Reproduce

Select interpreter and run it in cursor

Expected Behavior

Running properly

Operating System

Linux

Current Cursor Version (Menu → About Cursor → Copy)

Version: 1.5.5 (system setup)
VSCode Version: 1.99.3
Commit: 823f58d4f60b795a6aefb9955933f3a2f0331d70
Date: 2025-08-25T17:40:25.290Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.22631

Does this stop you from using Cursor

Yes - Cursor is unusable

2

By the way I can work with jupyter notebook in cursor 0.50.0, however I cannot get access to the agent mode and the inline completion because it asked me to update the version.

Please update to the latest version of Cursor at Downloads | Cursor - The AI Code Editor to continue using the Agent

(Request ID: bb4439f3-0a24-461c-aa2d-6cffc5e7d397)

3

Hey, please try this:

4

Hi deanrie,

Thanks for your response. I tried this and still it doesn’t work

5

cc @ravirahman

6

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