Solidworks Host File Block Install ((install)) Jun 2026

1. Hosts File Intervention

Troubleshooting SOLIDWORKS Installation: Using the Hosts File to Block Activation Servers

When deploying heavy-duty 3D CAD software like Dassault Systèmes SOLIDWORKS, network configurations and licensing checks are critical components of the process. In enterprise environments, educational institutions, or during the setup of standalone network licenses, system administrators often need to control exactly which servers the application interacts with during and after the installation.

A full restart is not always required. The quickest way to apply your changes is to open the Command Prompt as an administrator and run the command ipconfig /flushdns . This clears the DNS cache and forces your system to read the updated Hosts file. solidworks host file block install

C:\Windows\System32\drivers\etc\hosts

: If the hosts file is manually set to "Read-only" in its file properties, the installer will be unable to update the necessary DNS mappings. File Mismanagement : If the file was accidentally renamed to

Ensure the lmgrd.exe and sw_d.exe ports are open (usually 25734 and 25735). 2. Perform a Clean Installation A full restart is not always required

In some network-licensed environments, you want to block communication with external servers to prevent license tampering or unauthorized automatic updates. Step-by-Step Guide: SolidWorks Host File Block Install

I can provide specific firewall rules or registry fixes based on your environment. Share public link

Blocking websites – If you want to block access to a particular website, add the hostname to a hosts file with an IP address of 0. www.masterdc.com the risks involved

This article explores why someone might use a approach, the risks involved, and the correct, compliant methods for ensuring a successful installation. What is the SolidWorks Host File?

It is commonly used to block websites, prevent connections to telemetry services, or redirect network traffic for testing.

If the machine has no internet access, choose the "Activate Manually" option via email. This bypasses the need to block servers and complies with the EULA. Conclusion

By mapping these domains to 127.0.0.1 in the Windows etc/hosts file, the installation manager immediately skipped the online check and allowed the install to proceed from local files.