To resolve this issue, you must inspect and edit the Windows hosts file using administrative privileges. Follow these exact steps: Step 1: Open Notepad as an Administrator
If you let me know the exact error code or if you're trying to set up a new server , I can give you the specific steps for your version of SolidWorks.
If cleaning the hosts file does not fix the connection issue, the block might live inside your hardware firewall or Windows Defender settings instead. Network-licensed versions of SolidWorks use specific ports managed by the FlexNet service that must remain open. Solidworks Host File Block
After saving the file, you must tell your computer to clear the old network paths so the new block takes effect immediately.
The Windows is a plain-text system file used to map hostnames to IP addresses before the system queries a DNS server. By manipulating this file, a user can redirect network traffic intended for a legitimate domain (e.g., localhost ). To resolve this issue, you must inspect and
A refers to the intentional modification of the Windows local hosts file to either bypass Domain Name System (DNS) resolution problems or selectively control internet traffic for SolidWorks client-server communications. This networking mechanism is frequently utilized by CAD administrators to establish stable connections with the SolidNetWork License Manager (SNL) and SolidWorks PDM servers, particularly for remote teams operating via Virtual Private Networks (VPNs).
When your computer tries to connect to a server, it checks this local file first before asking a Domain Name System (DNS). 1. Using a Hosts File Block for Troubleshooting By manipulating this file, a user can redirect
Right-click on the Notepad app and select . Step 2: Open the File
Aggressive firewalls, anti-malware tools, or third-party network monitors sometimes flag outbound licensing requests as suspicious traffic. To protect your system, they may automatically write block rules directly into your hosts file. 2. Leftovers from Software Cleanup Tools
Modern versions of SolidWorks feature background diagnostic tools that routinely upload usage statistics, crash logs, and performance metrics to Dassault Systèmes servers. Organizations with strict data privacy guidelines or limited internet bandwidth use the hosts file to block these background uploads, ensuring intellectual property and usage patterns remain strictly inside the local network. 3. Preventing Unintended Software Updates
While Sarah used it for a migration, many users search for "Host File Blocks" for other reasons: