The error occurs after a scheduled automatic update. 3. Network Path Permissions (Network Deployment) In multi-user environments, the configuration file often points to a shared network drive ( \\fileserver\tecdoc\data ). If your Windows user account lacks "Read & Execute" permissions on that share, the client fails.
<add key="ConnectionString" value="Data Source=localhost\SQLEXPRESS;Initial Catalog=TecDocData;Integrated Security=False;User ID=tecdoc_user;Password=YourPassword;"/>
Locate your TecDocClient.config file, verify its last backup date, and save a copy to a safe location. Do it before you need it. Keywords integrated: loading data failed check the configuration file tecdoc best, TecDoc error resolution, TecDoc configuration guide, TecDoc database connection error, fix TecDoc loading error.