Software⏱️ 3 min read📅 2026-06-11

How to Fix: An error occurred while Internet Connection Sharing was being enabled

Error while enabling Internet Connection Sharing in Windows. Check service dependencies and firewall status.

Quick Answer: Enable all required services, including Application Layer Gateway Service and Network Connections, and ensure Windows Firewall is running.

An error occurred whileInternet Connection Sharing was being enabled, preventing users from sharing their LAN internet connection over a hosted network. This issue affects Windows operating systems and can be frustrating for users who need to share their internet connection with others.

This problem is particularly vexing because it requires technical expertise to resolve, making it difficult for non-technical users to troubleshoot and fix. However, by following the steps outlined in this guide, you should be able to identify and resolve the root cause of the issue.

🛑 Root Causes of the Error

  • The primary reason for this error is that not all necessary services are enabled or configured correctly. Internet Connection Sharing (ICS) relies on a series of services to function properly, including Application Layer Gateway Service, Network Connections, and Remote Access Auto Connection Manager, among others.
  • Alternatively, the issue may be caused by Windows Firewall being disabled or not running correctly. Windows Firewall plays a crucial role in protecting the system from unauthorized access, and its absence can lead to this error.

🚀 How to Resolve This Issue

Enabling Necessary Services

  1. Step 1: To resolve this issue, start by opening the Services window. Press the Windows key + R, type services.msc, and press Enter.
  2. Step 2: In the Services window, find each of the necessary services listed under Internet Connection Sharing (ICS), such as Application Layer Gateway Service, Network Connections, and Remote Access Auto Connection Manager. Double-click on each service to open its properties window.
  3. Step 3: For each service, ensure that the startup type is set to Automatic and the service status is set to Started. Click OK to save the changes.

Enabling Windows Firewall

  1. Step 1: If you suspect that Windows Firewall is the cause of the issue, start by enabling it. Press the Windows key + R, type services.msc, and press Enter.
  2. Step 2: In the Services window, find the Windows Firewall service and double-click on it to open its properties window. Ensure that the startup type is set to Automatic and the service status is set to Started. Click OK to save the changes.

🎯 Final Words

By following these steps, you should be able to identify and resolve the root cause of the error. Enable necessary services, such as Application Layer Gateway Service and Remote Access Auto Connection Manager, and ensure that Windows Firewall is running correctly. If you continue to experience issues, consider seeking further assistance from a qualified IT professional.

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