A default Windows Hosts file usually contains only commented lines that start with # . It doesn't contain active rules. The only active entry you might see is 127.0.0.1 localhost .
: Use the built-in SOLIDWORKS Repair Tool when prompted by a corruption dialog box.
Ensure the path is entered correctly using the format: 25734@your-server-name or 25734@your.server.ip.address . 3. Antivirus Whitelisting solidworks host file block fix
Is this a license or a network-managed SolidNetWork License (SNL) ?
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. A default Windows Hosts file usually contains only
SolidWorks uses this file to communicate with the and PDM servers. When your computer searches for the license server, it first checks the Hosts file. If the file contains incorrect entries (e.g., redirecting the license server to 127.0.0.1 ), SolidWorks won't be able to find it, resulting in activation failures.
To fix PDM connectivity or manually bypass DNS lookups for a SOLIDWORKS server: Open Notepad as Administrator : Use the built-in SOLIDWORKS Repair Tool when
This method is commonly used with cracked or pirated versions of SOLIDWORKS to block communication with activation and validation servers.
If editing the hosts file does not restore connectivity, consider these alternative solutions:
Alternatively, you can deactivate them without deleting them by typing a # and a space at the absolute beginning of the line (e.g., # 127.0.0.1 ://solidworks.com ). Step 4: Add Legitimate License Servers (If Applicable)
Now that the block is removed, try activating SolidWorks again. Open . Navigate to Help > Licenses > Activate . Try the activation process again. Troubleshooting: What if it's not the Hosts File?