Solidworks Host File Block Install | __full__
If SOLIDWORKS fails to launch after blocking these servers, it may be looking for a local license manager. Ensure you are pointing to your snlm server if required. To undo these changes, simply remove the added lines from the hosts file and save.
Instead of using a hosts file block, which can cause long-term instability, use these authorized methods for troubleshooting: 1. Fix License Manager Communication (Firewall)
To test if the SolidWorks installation is blocked, try to download and install SolidWorks. The installation process should fail or be redirected.
If you want to allow the installation of SolidWorks, simply remove the entries you added to the hosts file.
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Some automated restriction tools modify registry keys to block specific executable behaviors or local routing paths. Inspect HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters to ensure your standard network pathways are normal.
Even after saving the file, Windows may temporarily store the old blocked routes in its local network cache. You must clear this cache to apply the changes immediately.
: You may need to create a specific Security Exclusion Policy through your management console.
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. If SOLIDWORKS fails to launch after blocking these
Prefer controlling access via license server configuration, firewall rules, or vendor-approved offline activation methods rather than hosts-file blocking; use hosts-file edits only as a short-term, well-documented troubleshooting measure after confirming legal and support implications.
Some antivirus programs flags the background download scripts of SolidWorks as suspicious activity. Temporarily pausing your antivirus provider's real-time protection for 15 minutes can allow the installer to clear the verification hurdle. 3. Corporate Proxy and VPN Settings
# SOLIDWORKS Activation Block 127.0.0.1 ://solidworks.com 127.0.0.1 ://solidworks.com.br 127.0.0.1 activate.solidworks.es 127.0.0.1 activate.solidworks.fr 127.0.0.1 activate.solidworks.de 127.0.0.1 activate.solidworks.it 127.0.0.1 activate.solidworks.jp 127.0.0.1 activate.solidworks.kr 127.0.0.1 activate.solidworks.tw 127.0.0.1 solidworks.com Use code with caution. 4. Save and Exit Go to . Close Notepad. 5. Flush DNS Cache
Right-click on the Notepad application from the search results and select . Click Yes if the User Account Control (UAC) prompt appears. Step 2: Locate and Open the Hosts File Instead of using a hosts file block, which
: While often caused by blocked HTML files from a zip extraction, a blank screen can also indicate the installer is stuck waiting for a connection that the hosts file is blocking. Connection Timeouts
Blocking SolidWorks installations or license activation via the hosts file is a method some administrators use to prevent unauthorized activation or to stop SolidWorks from contacting specific network license servers or online activation servers. Below is a concise, practical overview covering what it is, why and when it’s used, how it’s done, the risks and limitations, and safer alternatives.
Change the file type filter (bottom right) from "Text Documents ( .txt)" to **"All Files ( .*)"**. Select the file named hosts and click . 3. Add the Block Entries
Double-click the file named (it will not have a file extension). Step 3: Identify and Delete SolidWorks Blocks