To fix errors in RTQDownloader—the specialized data-retrieval software used by traders to pull historical and real-time market data into platforms like MetaStock and Advanced GET—you generally need to address data feed changes, corrupted configuration caches, or path misalignments.
Because you did not specify your current operating system or the exact error message you are seeing, this guide assumes you are running RTQDownloader on Windows ⁄11 to feed MetaStock with historical end-of-day or real-time data.
Step 1: Fix “Connection Failed” & “Cannot Connect to Server” Errors
These errors typically occur when your data provider updates its security certificates, API endpoints, or login protocols, or when your local firewall blocks the connection.
Verify internet stability: Open an external page in your browser to confirm that your web connection is live and responsive.
Add a firewall exception: Open your Windows Defender Firewall, click Allow an app or feature through Windows Defender Firewall, and ensure both private and public boxes are checked for RTQDownloader.exe.
Update your login credentials: Open the program, navigate to your data feed options panel, re-enter your username and password, and click Apply to force a handshake refresh.
Step 2: Resolve “System Cannot Find the Path Specified” or I/O Errors
This error happens when RTQDownloader tries to write downloaded data to a directory or folder that was moved, deleted, or marked as read-only.
Check directory properties: Locate your data storage directory (e.g., C:\Metastock Data</code>). Right-click the folder, select Properties, uncheck Read-only, and click Apply.
Correct the download path: Inside RTQDownloader, go to your configuration settings and verify that the target directory exactly matches your active MetaStock folder destination.
Run as Administrator: Right-click the RTQDownloader desktop shortcut, select Run as administrator, and check if the write permission errors disappear. Step 3: Clear Corrupted Cache & App Configuration
If the downloader crashes on startup or freezes while loading metadata, the internal program cache has likely become corrupted.
Close the application completely: Open the Windows Task Manager (Ctrl + Shift + Esc), look for any background instances of RTQDownloader, right-click them, and select End Task.
Navigate to AppData: Press Windows Key + R, type %appdata%, and press Enter.
Wipe temporary configs: Locate the folder associated with your downloader or its parent vendor (e.g., Equis or RTQ), find the cache or .ini configuration files, and rename them to .old. Reopening the app will generate clean configuration files.
Step 4: Fix Missing or Corrupted Ticker Data (Force Recheck)
If your charts show gaps or stop updating despite a successful connection message, the historical database files are desynchronized.
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