Solidworks Host File Block ((hot)) [LATEST]

If you are unable to save changes or the feature is "blocked," check the following: Write Access Blocked

: It can be used to temporarily block connections to specific PDM vaults or servers during maintenance or upgrades. GoEngineer Solidworks Host File Block

You can manually map the server name to its IP address to ensure a direct connection. Step-by-Step Configuration: Open Notepad as an Administrator. Navigate to C:\Windows\System32\drivers\etc\ . If you are unable to save changes or

Some IT administrators block telemetry or "phoning home" for privacy reasons. However, Dassault has become aggressive. If their servers cannot reach your installation, they may flag your license key as "inactive" or "hijacked," leading to a support nightmare. Always allow SolidWorks through your firewall. Navigate to C:\Windows\System32\drivers\etc\

Often used as a temporary fix for SOLIDWORKS PDM connection issues. It allows the client machine to resolve server names directly to an IPv4 address, bypassing problematic DNS lookups.

| Domain | Purpose | |--------|---------| | localhost | Standard loopback – do not block | | sw.activation.dart | Activation server | | license.dat | License validation | | solidworks.com | Main update & telemetry | | solidworks.global.ssl.fastly.net | CDN for updates | | dsls.dassault-systemes.com | License server | | events.spatial.com | Telemetry |

You cannot save changes to this file without administrative privileges. Start Menu , right-click it, and select Run as Administrator In Notepad, go to File > Open Paste the path C:\Windows\System32\drivers\etc into the address bar.