Facing the issue while singin into teams toolkit

[RuAmey27]

📝 Issue Description

When attempting to authenticate using Teams Toolkit CLI, the login process fails with the following error:

{
  "errorCode": "network_error",
  "errorMessage": "Network request failed",
  "subError": "",
  "name": "ClientAuthError",
  "correlationId": "2b206238-60cb-4e32-9fd7-7e20a646ed4e"
}

This prevents the CLI from completing any action that requires authentication.
🔁 Steps to Reproduce

Run any Teams Toolkit CLI command that requires authentication, such as:

teamsapp account login m365

or

teamsapp dev

The login process fails immediately with the error above.

❗ Expected Behavior

Authentication should succeed or provide a more detailed error explaining the cause.

❗ Actual Behavior

Authentication fails with a generic network_error: Network request failed and no additional details.

🧪 Environment (brief)

Teams Toolkit CLI

Windows

Node.js 18.x

Using corporate/enterprise environment (possible proxy)

http://localhost:55673/?code=1.Ab4AyGdPgPge00ekabudvO9CBEzCp372sSBKnRGa4S6eesABAAC-AA.AgABBAIAAABlMNzVhAPUTrARzfQjWPtKAwDs_wUA9P8bUgibKfaJEcdY0LUqGVhxrjH86pc0w2mA9q-LZ5rU5k4_8MUMfsMYNxYxuOR4xDTuhzJS6Uk1eZpoWrgwQ-gDJOG33fZtlNJu_1bSkd56SJQXgBiS_kqT0zCUK56RRqwbrIJMNSdNYU4WlqtHZGz_p1oJw9moqFh9wkL4lDKjGcNO6OUTg9gPyuVMhlOz4rRMokNs6vSJ7r3PXpk8Dglf1hbKqU6pze3JXuLfmF5jvC0G7oUEG8vhd-0-Ogmkw-gYHLf4DhVKcfdBvm2YJWMXvh8pIZFSJDhlq2IESv9Kb64ujspxpNTiLrjX8JXeiU6cSab8pSOZA3iwL0PxFQ2Iac6woctw4Hp4YMC7KMzITIml_J7eVSQLnsIQTWV-J4ouky5aty4dQXqB-5ELusyTkUgJRlLmYUu1Hui1nv8YzquW57sEz9inGNbjVl__GNHp2KR1uD2Dd_TUllNHBPJK1Rc-60FlDoCVlFKwZzoXWKiamnSpyoK5VDNM2jiyGuooKtOlJp7UpHisYeE8IecmUqe7mZzm0yWeaviy9PpADrg-v20KNiwkT_088mO5soSbhX5QKcic6jZeV2eSX1WZ4q4oGCP-ok84osC7-dnzjreqTENHhl-nQUidjgPIgXHIkNV1fQg2AhGenGH0W2M4IG6jMNuHaSlPjiXZSpp1n2Zx045JyPKqOTdSHsn33PRwBYspwOr8fQMHPOHgRiLVE8D05h_Gy3FP1TmUY2S4EZDbtpkVsqKzUYFCi6gFMoZmDHSyoDJLUmdAFh_eFmdvhw5079qysm8itZQhn6hnQ5SHEsdo5w-YijY3LN_XciLt_9aTv8hBA3xFL73w2WQLFt739_Y7mcC3lpYDzc75YU6Mh2dkTSQCvLcCLBxpPGeJBLX1jz0&client_info=eyJ1aWQiOiIyOTdmYzQ1NS0yZTMxLTRmODUtOTMyZC1lNjUyOGVkZmNjY2EiLCJ1dGlkIjoiODA0ZjY3YzgtMWVmOC00N2QzLWE0NjktYmI5ZGJjZWY0MjA0In0&session_state=00aac6d9-0eea-ff93-5dc8-aaaeb4c54f3e

{
"errorCode": "network_error",
"errorMessage": "Network request failed",
"subError": "",
"name": "ClientAuthError",
"correlationId": "fa67965d-ffa5-4952-b22a-d13dc9d6b302"
}

[m365-agent-toolkit-assistant]

👋 Hi @RuAmey27,

Thank you for reporting this issue! We want to let you know that:

⏱️ Our team will personally review your issue
🎯 You can expect a response within 2 business days

✨ This is an AI-generated initial response
🤖 AI-Generated Preliminary Analysis:

Your issue ("network_error" during Teams Toolkit CLI login) is commonly seen in corporate/proxy environments. It’s typically caused by proxy/network restrictions or expired CA certificates. Below are actionable steps from similar issues:

Workarounds:

1. Check Proxy Settings:
   • Ensure that HTTP_PROXY and HTTPS_PROXY environment variables are correctly set.
   • Try unsetting these variables and configure your proxy in npm (npm config set proxy ...), then retry.
2. Configure VS Code Proxy:
   • Open VS Code settings: Application > Proxy.
   • Uncheck both Use System Certificates and Proxy Strict SSL—then reload VS Code.
3. Test Network:
   • Try on a different network (e.g., hotspot) to rule out firewall/proxy blocks.
4. Clear Cached Accounts:
   • Delete CLI account cache at ~/.fx/account.
5. Run MSAL Sample:
   • Confirm if MSAL Node sample can acquire tokens.

References & More Info:

• Issue #11976
• Issue #7995

Let me know if you need help with environment variables or want to share more error details.

✨We'd love your feedback! Please take a moment to fill out our survey.

---

Note: This is an automated first response generated by AI. A human team member will review your issue and provide a more detailed response soon. We appreciate your patience!

[RuAmey27]

The issue is caused after updating windows system to KB5066793 update

[summzhan]

Hi @RuAmey27 , the Teamsapp command is an older version of Teams Toolkit CLI. We have now evolving to Agents Toolkit and our latest CLI is here: https://www.npmjs.com/package/@microsoft/m365agentstoolkit-cli. Recommend you to try this first.