Solidworks Host File Block Fix Link -

Generally, no . A standard, properly licensed installation of SolidWorks (Standalone or Network License) should never require you to edit the Hosts file for regular operation.

If the Hosts file is clear but you still face blocks, your firewall may be preventing the connection.

: The file itself may be set to read-only.

SolidWorks Host File Block Fix: A Comprehensive Guide to Resolving Licensing Issues solidworks host file block fix

To help narrow down any remaining connection or activation issues, please let me know:

: As detailed in community guides , you can manage these settings via the Windows Defender Firewall with Advanced Security menu by checking the "Outbound Rules" section. 4. Quick SOLIDWORKS Fixes

: Right-click the app and select Run as Administrator . Generally, no

In this article, we will discuss the SOLIDWORKS host file block fix, a solution to resolve connectivity issues caused by a blocked host file. We will cover the causes of the issue, the location of the host file, and provide a step-by-step guide on how to modify the host file to fix the problem.

is the gold standard for CAD design, but few things are more frustrating than being in the zone, modeling a complex assembly, and suddenly being hit with a License Error (-15, -97, or -5) or a complete crash. Often, the culprit isn't corrupt software or bad hardware—it is your own Windows Hosts File .

Scroll to the bottom of the file and add a new line with the server's IP address, followed by a Tab or space, and then the server name. Example: 192.168.1.100 YOUR_SERVER_NAME . : The file itself may be set to read-only

The Windows hosts file is a plain text file used by the operating system to map hostnames (like activation.solidworks.com ) to IP addresses. It functions as a local DNS lookup table, taking precedence over DNS servers.

This stops the software from realizing it might be running on a floating license that expired, or prevents it from turning off features because it cannot reach the primary license server.