TecDOC releases regular updates. If you have ignored update prompts for several months, the backend servers may have deprecated an old API version. Your configuration file still points to the old endpoint, but the server rejects the handshake. The error message is a catch-all: “Check your config” (because your config is outdated).
TecDOC New requires outbound internet access to specific domains (usually api.tecdoc.net or similar). If your workshop recently changed internet providers, installed a new firewall, or updated a proxy server, the application might be blocked. The configuration file might still be perfect, but the connection fails. The software interprets this as a configuration issue because the file tells it where to connect, and it cannot reach that address.
Before we fix the problem, we need to understand the architecture of TecDOC New. Unlike a standard website, TecDOC New is a hybrid application. It runs locally on your Windows machine (using a web server shell) but pulls live data from TecDOC’s central servers via APIs. loading data failed check the configuration file tecdoc new
When you see “Loading Data Failed”, the software is telling you that it successfully launched the user interface, but it cannot fetch the necessary data (vehicle makes, models, parts, or your subscription status) to populate that interface.
The second part of the error—“Check the Configuration File”—is the software’s way of pointing a finger at the instruction manual it uses to find the data. That instruction manual is a configuration file (usually a .json, .xml, or .ini file stored locally on your hard drive). TecDOC releases regular updates
In short: The software is running, but it has lost the map to the data warehouse.
Advanced users sometimes edit the configuration file to change UI settings or database connections. A single missing closing tag (/>) or an extra comma in a JSON-based config will break the entire loading sequence. Advanced users sometimes edit the configuration file to
If the error message literally includes the word "new" at the end (or if you just installed a "New" version), it often indicates that the software was installed in a directory where an old version previously existed, or the installer did not overwrite configuration files correctly.
The Fix:
Identify the exact file referenced by the error. Common locations include: