Solidworks Host File Block [exclusive] -

: Search for Notepad in your Start menu, right-click it, and select Run as Administrator . (This is required to save changes to system files).

During activation, standard licensing errors appear, claiming the server is temporarily unavailable or your internet connection is down.

: Ensure you have local Windows Administrator credentials, or you won't be able to save your changes. Solidworks Host File Block

By explicitly linking the name and IP, you eliminate the "guesswork" for your computer. This is especially helpful in WAN environments or when local firewalls/DNS settings are being overprotective and "blocking" the standard handshake between your machine and the . Pro-Tips for Success

Scroll to the bottom of the file. On a new line, type your server’s IP address, press , and then type the server name. Example: 192.168.1.50 MySolidWorksServer 4. Flush the DNS Cache To ensure Windows uses your new settings immediately: Open the Command Prompt (cmd). Type ipconfig /flushdns and press Enter . Common "Host File Block" Troubleshooting : Search for Notepad in your Start menu,

While a hosts file block effectively limits network traffic, it can introduce several technical complications to an engineering workflow:

To block SolidWorks from reaching specific servers, you map the server's domain name to your local machine (IP ). Common addresses targeted include: 127.0.0.1 activation.solidworks.com 127.0.0.1 im-node1.solidworks.com 127.0.0.1 im-node2.solidworks.com 127.0.0.1 sldworks-entitlements.solidworks.com : Ensure you have local Windows Administrator credentials,

The hosts file is a method to block SolidWorks network traffic. It is widely documented in piracy circles but carries legal, operational, and technical drawbacks. For any professional environment, use proper firewall rules, software configuration, or accept the telemetry as part of the licensed software agreement.

SolidWorks relies on the SolidNetWork License (SNL) Manager or online activation servers to validate user seats. In environments with conflicting network routes or legacy license servers, mapping the activation domain names to a local loopback address ( 127.0.0.1 ) prevents the software from hanging while searching for non-existent external licensing servers. 2. Disabling Telemetry and Background Tracking

To ensure Windows immediately drops the old, blocked routing data, click the Start menu, type cmd , right-click , and select Run as administrator .