Solidworks Host File Block Fix ((top)) Jun 2026

: In Notepad, go to File > Open . Navigate to C:\Windows\System32\drivers\etc\ . Change the file type filter in the bottom right from "Text Documents (*.txt)" to All Files .

Press . You should see a message stating: "Successfully flushed the DNS Resolver Cache." Troubleshooting Potential Errors Windows Will Not Let You Save the File

This is the standard method. You will need .

Right-click on the Notepad application from the search results. solidworks host file block fix

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.

If you’ve searched for ways to get SolidWorks running without a standard license, you’ve likely come across the so-called "host file block fix." This method involves manually editing your system’s hosts file to redirect SolidWorks’ license verification servers to your local machine (e.g., 127.0.0.1 ).

"No internet connection detected" (when you clearly have one) Step 1: Locating the Windows Hosts File : In Notepad, go to File > Open

ping activation.solidworks.com

To fix the SOLIDWORKS host file block issue, follow these steps:

After editing the hosts file, you need to tell Windows to update its DNS settings. Open the Start Menu, type cmd . Right-click and select Run as administrator . Type: ipconfig /flushdns Press Enter . Alternative Solutions (If Host File Was Clear) Right-click on the Notepad application from the search

If you are working in a managed environment and these entries keep coming back, speak with your IT department, as security policies might be automatically modifying the hosts file. If you'd like, I can help you with specific steps for:

One highly effective, system-level solution is modifying the Windows Hosts file. This guide explains how the Windows Hosts file interacts with SolidWorks, how to use it to resolve licensing blockages, and how to safely implement the fix. Understanding the Windows Hosts File

: Antivirus software (like Webroot or SentinelOne) actively blocking any program from modifying the hosts file. Step-by-Step Fix: Modifying the Hosts File

In Notepad, go to and browse to C:\Windows\System32\drivers\etc . Change the file type filter to All Files ( . ) . Open the hosts file.

: Save the file. To ensure the changes take effect immediately, open Command Prompt and type ipconfig /flushdns then press Enter. Common Troubleshooting Blocks