Software⏱️ 2 min read📅 2026-05-31

How to Fix: Nuget connection attempt failed "Unable to load the service index for source"

Nuget connection attempt failed due to unable to connect to the remote server. Check your internet connection and try again.

Quick Answer: Check your internet connection, as the issue is likely related to a temporary network problem.

📋 Table of Contents

  1. ⚠️ Common Causes
  2. 🚀 How to Resolve This Issue
  3. 💡 Conclusion

NuGet connection attempt failed due to a timeout or connectivity issue. This error can occur when the NuGet package manager is unable to connect to the NuGet.org API.

⚠️ Common Causes

  • Firewall or proxy settings blocking the connection to NuGet.org.
  • A network connectivity issue, such as a slow internet connection or DNS resolution problems.

🚀 How to Resolve This Issue

Method 1: Check Network Connectivity

  1. Step 1: Verify your network connection and ensure that you are connected to the internet.

Method 2: Disable Firewall or Proxy Settings

  1. Step 1: Temporarily disable your firewall or proxy settings to see if it resolves the issue.

💡 Conclusion

By following these steps, you should be able to resolve the NuGet connection attempt failed error and successfully connect to NuGet.org.

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