If the file remains inaccessible even after disabling security blocks: Navigate to C:\Windows\System32\drivers\etc . Right-click the file and select Properties .
: The hosts file may be set to "Read-only" or requires administrative privileges to modify. solidworks host file block fix
For SolidWorks PDM or network licenses to work when DNS fails, you must manually point the machine to the correct server IP. If the file remains inaccessible even after disabling
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. solidworks host file block fix