Continuously reconnecting: "stream disconnected before completion"
Resolved 💬 7 comments Opened Feb 2, 2026 by StativBus Closed Feb 4, 2026
💡 Likely answer: A maintainer (github-actions[bot], contributor)
responded on this thread — see the highlighted reply below.
What version of the VS Code extension are you using?
0.4.68
What subscription do you have?
Business
Which IDE are you using?
VS Code
What platform is your computer?
Windows
What issue are you seeing?
Codex keeps working for the most part. It just takes longer because after some thinking steps it shows this:
Reconnecting... 1/5
stream disconnected before completion: error sending request for url (https://chatgpt.com/backend-api/codex/responses)
If it counts up to 5 the task is stopped. I can then just type something like "retry" and it usually works again.
Given that it does work somewhat I assume it cannot be that the FIrewall is blocking it right? What could be potential troubleshoots?
What steps can reproduce the bug?
Any usage of the extension.
What is the expected behavior?
No "Reconnecting" messages.
Additional information
The firewall has caused issues before.
I am using this on Windows in the sandbox without WSL.
7 Comments
Potential duplicates detected. Please review them and close your issue if it is a duplicate.
Powered by Codex Action
Please use the
/feedbackcommand to upload logs and session details and post the thread ID here.Are you using any non-default config.toml settings? Are you using an Azure endpoint, a corporate LLM proxy, or is this the default OpenAI endpoint?
Hi, thank you for the quick response! I am using all detault settings. I can't say this with 100% certainty, but I believe its the default OpenAI endpoint. The ID of an exemplary chat (it happens in all of them) is: 019c0ee3-1933-72b2-bdc6-c5d5f823460a
I looked at your logs. This appears to be a basic network connectivity issue. You'll need to debug on your end. Check for things like firewalls, network proxies (TLS handshakes), VPNs, or DNS issues. If you're on a corporate network, your IT team may be able to help.
Thank you for checking. Yes, you appear to be right. Even though we are not using a VPN, there appear to be some additional firewall settings or the like because the issue does NOT appear when in the office. Does this point to something specific that I could tell our IT or is this too little information to go off of. If so, feel free to close the issue. You are right in that it is an issue on my end.
You can tell your IT that https://chatgpt.com/backend-api/codex/responses is the endpoint that Codex needs to access.
I also met this problem today. I sent a easy message to codex, but it kept reconnect, and finally said "stream disconnected before completion: stream closedbefore response.completed"
<img width="590" height="801" alt="Image" src="https://github.com/user-attachments/assets/ff850b1f-af18-43a4-ab38-69994478ced6" />
I tried to turn off my VPN, and switching WIFI to my personal hotspot. The two ways didn't solve my problem. And finally, I checked the config file:C:\Users\admin\.codex\config.toml, and I found that the base_url is not openai_base_url, it's other providers.
I suddenly remembered that I use CC-switch before, and I configured codex provider in CC-switch, it overlap config infomation of codex itself.
after I delete the configuration of cc-switch codex, my codex app can response correctly.
I put my solution here ,https://github.com/farion1231/cc-switch/issues/1490#issuecomment-4257829454
<img width="990" height="205" alt="Image" src="https://github.com/user-attachments/assets/ae7a3404-fe30-42f0-91ad-0d37cc598aef" />