Solidworks Host File Block Fix |work| Info

Navigate to the following directory path: C:\Windows\System32\drivers\etc

You will see lines starting with # . These are comments. You want to add or remove lines to fix the issue.

After unblocking and editing the hosts file, verify the connection using the PDM Connectivity Test Tool or by attempting to ping the server by name in the Command Prompt. If the connection still fails, check if the or SolidWorks Licensing Service are running and set to Automatic in Windows Services.

The Windows Firewall can block the SolidWorks executable or the FlexNet licensing service ports. solidworks host file block fix

Select the file named (it will have no file extension) and click Open . Step 3: Analyze and Edit the Entries

If you recently transferred your license, try deactivating and reactivating .

Sometimes the SOLIDWORKS Installation Manager appears blank because Windows blocks the downloaded files. Unblock HTML Files Go to your installation folder (usually \sldim\lang\english\HTML\ Right-click on frameset.html Properties , and click the button at the bottom. Repeat for other files if the screen remains blank. MLC CAD Systems

You cannot edit the hosts file without administrative privileges. Locate the file named hosts . Right-click on hosts and select > Notepad . After unblocking and editing the hosts file, verify

: Often caused by incorrect local loops or firewall configurations mirroring bad IP data.

This method addresses specific communication "blocks" where the software cannot find the server despite being on the same network: DNS Failures:

If you are working in a managed environment and these entries keep coming back, speak with your IT department, as security policies might be automatically modifying the hosts file. If you'd like, I can help you with specific steps for:

The SolidWorks Installation Manager cannot download new files, check for updates, or verify serial numbers. Select the file named (it will have no

(no entry)

What or message pops up when you launch the software?

Standalone licenses must validate their serial numbers with Dassault Systèmes activation servers.

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.