Temporarily disable in Windows Defender or your third-party antivirus.
Add the entire extraction folder to your antivirus so it doesn't delete the files once protection is re-enabled. 3. Configure Firewall Exceptions
: The license manager typically communicates via ports 25734 and 25735 (or 27000 for FLEXnet). If the Windows Firewall blocks these, the client software will fail to obtain a license.
: Security software frequently flags and removes the .dll or .exe files required for the license server to function, leading to a "failed initialization" state.
If the splash screen hangs or "Error 6" continues after fixing the license server, a corrupt registry key may be the culprit. SOLIDWORKS Registry Reset
: Leftover license files from previous installations can conflict with new activation attempts. Step-by-Step Troubleshooting Guide 1. Clean the Licensing Environment
The specific "Error 6" label often points to issues. In the context of "SolidSquad" activation tools used for older software like SOLIDWORKS 2018, these failures generally stem from:
With the environment cleaned and ports open, re-initialize the service. Go back to your activator folder. Right-click server_install.bat and .
If your antivirus has "quarantined" parts of the activator, the server will never start correctly.
Before attempting a re-installation, you must remove conflicting files that might be causing the "Error 6" initialization failure.