File Block Fix ((install)) - Solidworks Host

Did this computer ever have an of SolidWorks installed on it previously? Share public link

Paste the following path into the address bar and press Enter: C:\Windows\System32\drivers\etc

Contact support or your reseller if:

When you install SOLIDWORKS, it may create entries in the host file to facilitate communication between the software and the license server. However, sometimes these entries can become corrupted or blocked, causing issues with the software. Here are some common reasons that can lead to a host file block:

Open the Windows menu, type cmd , and select Run as administrator . solidworks host file block fix

If you are running a local SolidWorks License Server (LMTOOLS) on your own machine (IP 127.0.0.1 ), you might need to redirect the service:

If SOLIDWORKS is unable to reach its server or you cannot edit your hosts file, check the following common causes and solutions:

Save the file, restart your machine, and launch SolidWorks to verify that your connection block is cleared.

Your firewall may still be dropping outbound packets destined for Dassault Systèmes domains. Did this computer ever have an of SolidWorks

Are you experiencing issues with SOLIDWORKS due to a blocked host file? Do you see an error message indicating that the software is unable to connect to the license server or access certain features? You're not alone. In this article, we'll explore the SOLIDWORKS host file block fix, a common problem that affects many users. We'll provide a step-by-step guide on how to resolve the issue and get your SOLIDWORKS software up and running smoothly.

A blocked hosts file is a common, yet easily fixed, culprit behind SolidWorks activation issues. By following these steps to locate, edit, and flush your DNS, you can eliminate the and restore your license activation functionality.

Change the file type dropdown from "Text Documents ( .txt)" to **"All Files ( .*)"**. Select the hosts file and click Open . 3. Remove Blocked Entries

: The hosts file may be set to "Read-only" or requires administrative privileges to modify. Here are some common reasons that can lead

Paste the path C:\Windows\System32\drivers\etc into the address bar.

The Windows is a critical system file that maps hostnames to IP addresses, acting as a local DNS override. For SOLIDWORKS users, a "host file block" typically refers to connectivity issues where the software cannot reach the license server or PDM database because of misconfigured entries or security software preventing file modifications. Identifying the Cause of the Block

: If the host file is correct but you still can't connect, ensure TCP ports 25734 and 25735 are open in your Windows Firewall for the SolidNetWork License (SNL) Manager .