If you are working with automotive parts data, seeing the error can bring your operations to a screeching halt. This error typically occurs when the TecDoc Catalogue (standard or white-label versions) cannot establish a connection between the application interface and its underlying database.
Sometimes aggressive antivirus software flags the data-loading process as "suspicious behavior." Try temporarily disabling your antivirus to see if the data loads. 5. Common Quick Fixes
Sometimes the data access components (like ADO or DAO) become unregistered. Running a "Repair" via the original installer can fix this. tecdoc loading data failed check the configuration file
The most common culprit is that the application cannot read the config.ini or .config file.
Navigate to the AppData/Local/TecDoc folder and clear the temporary cache. Summary Checklist Potential Cause Incorrect Path Update config.ini with the correct folder path. SQL Service Stopped Restart SQL Server in services.msc . Missing Permissions Grant "Full Control" to the TecDoc folder. Corrupt Data Re-import the latest data update. If you are working with automotive parts data,
Ensure that port 1433 (default for SQL) is open in your Windows Firewall.
If these steps don't work, the configuration file itself might be corrupted beyond manual repair. In this case, renaming the old config file to config_old.ini and restarting the application may force it to generate a fresh, working template. The most common culprit is that the application
Ensure your license hasn't expired. Some versions of TecDoc will trigger a generic "loading failed" error if the subscription key is no longer valid. 4. Firewall and Network Blocks If you are using a network-based version of TecDoc: