Solidworks Host File Block Fix -

SOLIDWORKS "hosts file block" typically refers to an error where the installer or software cannot write to the Windows hosts file, often due to aggressive antivirus settings or a read-only attribute. This is also a common workaround used to resolve SOLIDWORKS PDM

# SolidWorks Block
127.0.0.1       www.solidworks.com
127.0.0.1       solidworks.com
127.0.0.1       www.swdoc.com
127.0.0.1       swdoc.com
127.0.0.1       customerportal.solidworks.com
127.0.0.1       activation.solidworks.com
127.0.0.1       licensing.solidworks.com
127.0.0.1       ls.solidworks.com
127.0.0.1       www.solidworks.com.swtea.com
127.0.0.1       swtea.com

Uncheck the Read-only attribute at the bottom of the General tab and click Apply. Step 3: Manually Edit the Hosts File for Server Connection solidworks host file block fix

Open Notepad as Administrator: Right-click the app and select Run as Administrator. SOLIDWORKS "hosts file block" typically refers to an

Add Your Server Entry: At the bottom of the file (on a new line), type the server's IP address, press Tab, and then type the server's name. Example: 192.168.1.100 MyLicenseServer Uncheck the Read-only attribute at the bottom of

2. How the "Fix" Works

The user edits the Windows hosts file (located at C:\Windows\System32\drivers\etc\hosts) to manually map the license server's IP address to its hostname.

127.0.0.1 activation.solidworks.com
127.0.0.1 register.solidworks.com
127.0.0.1 login.solidworks.com
127.0.0.1 solidworks.com
127.0.0.1 dsxclient.3dexperience.3ds.com
127.0.0.1 lmtools.dassault-systemes.com
127.0.0.1 licensing.3ds.com
127.0.0.1 swym.3dexperience.3ds.com
127.0.0.1 customersupport.solidworks.com
127.0.0.1 api.sw.solidworks.com