For network licenses, ensure ports and 25735 are open. Third-Party Antivirus Software
The Windows host file acts like a local phone book for internet addresses. It maps specific website names to numeric IP addresses before your computer asks the internet at large.
If you still cannot connect after updating the hosts file, the block may be at the firewall level: solidworks host file block fix
Fixing a SolidWorks host file block requires locating the file, clearing out incorrect entries, and ensuring your firewall plays nice with the SolidWorks Licensing Service. Understanding the Host File Block
Choose and enter 25734, 25735 into the Specific local ports box. For network licenses, ensure ports and 25735 are open
You should see a message stating: “Successfully flushed the DNS Resolver Cache.” Troubleshooting Secondary Licensing Blocks
To reset it, delete the contents of your current host file and paste the following standard clean layout into your administrator-run Notepad: If you still cannot connect after updating the
The default vendor daemon port (FlexNet).Ensure both inbound and outbound traffic are explicitly allowed on these ports within the Windows Advanced Firewall settings on both the client machine and the licensing server. 2. The SolidNetWork License Manager Path
While the list varies, common target domains include:
This means Notepad was not opened with administrative privileges. Close the program, right-click Notepad, select "Run as administrator," and try again.
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