If you're using Unity Asset server on Windows, you may notice that you are getting Could not start server. It happens after using the asset server for a long time because of the small asset server bug (password expires). You will have to reset the password or set it to never expire to avoid happening from this kind of error. Here are the steps below to fix this problem. Step 01 - Open Computer Management under Control Panel or search from your computer. Step 02 - Locate the Local Users and Group Folder under System Tools. Note : This is only available for Windows 7 Pro/Ultimate users. Step 03 - Right lick on unitysrv and click properties. Step 04 - Under user properties, untick "User must change password at next logon" and tick "Password never expires" box. It's always good to change this setting after you've installed Asset server to avoid connection problem at later time. PS: This only happens on Windo