AutoCAD

How to Prevent AutoCAD from Accessing Internet?

Understanding AutoCAD’s Internet Connectivity Requirements

AutoCAD, a powerful design software, typically requires the internet for activation and updates. However, there are times when users may wish to block AutoCAD from accessing the internet. This guide will walk you through the steps necessary to prevent AutoCAD from connecting online, enabling you to work offline while still ensuring the software functions correctly.

Method 1: Using Windows Firewall to Block Internet Access

  1. Open the Windows Firewall Settings: Start by clicking the "Windows" icon located on the taskbar. In the search bar, type "Windows Firewall" and hit enter.

  2. Access Allowed Programs: Look for the option labeled “Allow a program or feature through Windows Firewall.” Click on this link to open the settings.

  3. Modify Settings: Once the allowed programs window is open, click the “Change settings” button to enable editing.

  4. Add AutoCAD to Exceptions: If AutoCAD is not displayed in the list, you can add it by clicking the "Browse" button. Navigate to the directory where AutoCAD is installed, typically in C:\Program Files\Autodesk\AutoCAD 2025\ and select the main AutoCAD executable file (usually named acad.exe).

  5. Block AutoCAD: Once AutoCAD is listed in the exceptions, uncheck the box next to it to block internet access. Confirm your changes by clicking “OK.”

Method 2: Disabling Internet Access through Control Panel

  1. Open Control Panel: Click on the "Windows" icon and type "Control Panel" in the search bar, then press enter.

  2. Navigate to Windows Defender Firewall: In the Control Panel window, locate and click on “Windows Defender Firewall.”

  3. Advanced Settings: On the left sidebar, click on “Advanced settings.” This will open the advanced firewall configuration panel.

  4. Outbound Rules: In the advanced settings, click on “Outbound Rules.” This section allows you to control programs’ ability to send traffic out of your computer.

  5. Create a New Rule: In the right-hand panel, click on “New Rule.” Choose the “Program” option and then proceed by clicking “Next.”

  6. Locate the AutoCAD Executable: Click on the “Browse” button, navigate to the AutoCAD installation folder, and select the acad.exe file. Click “Next” after selecting the file.

  7. Block the Connection: Select the “Block the connection” option to prevent AutoCAD from accessing the internet entirely. Continue by clicking “Next.”

  8. Name Your Rule: Name this new rule something recognizable, like “Block AutoCAD Internet Access,” and click “Finish.”

Method 3: Adjusting Proxy Settings for Specific Users

  1. Access Group Policy Management: If you have network management capabilities, open the Group Policy Management Console (GPMC) by typing “gpmc.msc” in the Run dialog box (Windows + R).

  2. Create a New Policy: Right-click your domain within the Group Policy Management tree, select “New” and create a new policy. Name it appropriately, such as “Block AutoCAD Access.”

  3. Configure Proxy Settings: Edit the new policy, navigate to “User Configuration,” and then to “Preferences.” Under “Windows Settings,” select “Internet Settings” and configure the proxy settings to a non-functional address.

  4. Apply the Policy: Ensure that this policy is applied to the specific users or groups you wish to restrict from internet access.

FAQ Section

1. Does AutoCAD require an internet connection for every function?
AutoCAD requires an internet connection primarily for activation, license verification every 30 days, and to download updates. However, once activated, it can be used offline for most design tasks.

2. Can I block internet access while using AutoCAD without affecting other software?
Yes, by creating specific rules in the Windows Firewall or Group Policy, you can block only AutoCAD from accessing the internet without disrupting connectivity for other applications.

3. What happens if I disconnect from the internet while using AutoCAD?
If AutoCAD is not set to check the license and you have a valid license, you can continue your work. However, remember that you will need to reconnect to validate your license periodically.

About the author

Wei Zhang

Wei Zhang

Wei Zhang is a renowned figure in the CAD (Computer-Aided Design) industry in Canada, with over 30 years of experience spanning his native China and Canada. As the founder of a CAD training center, Wei has been instrumental in shaping the skills of hundreds of technicians and engineers in technical drawing and CAD software applications. He is a certified developer with Autodesk, demonstrating his deep expertise and commitment to staying at the forefront of CAD technology. Wei’s passion for education and technology has not only made him a respected educator but also a key player in advancing CAD methodologies in various engineering sectors. His contributions have significantly impacted the way CAD is taught and applied in the professional world, bridging the gap between traditional drafting techniques and modern digital solutions.