> ## Documentation Index > Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt > Use this file to discover all available pages before exploring further. # HTTP Error 413 when processing a batch > Fix the HTTP 413 error on a FlexiCapture Web Station by raising the IIS request-filtering content-length limit beyond the default 30 MB in IIS Manager. IIS applies a built-in filter that limits the size of HTTP requests, set to 30 MB by default. An action on a Web Station that exceeds the limit reports `Cannot connect to 'AppServer' (error code: (HTTP 413, 19, 0))`. ## Raise the request size limit Click **Control Panel → System and Security → Administrative Tools → Internet Information Services (IIS) Manager**. Navigate to **Sites → Default Web Site → FlexiCapture12 → Server → Request Filtering**. Screenshot of IIS Manager with the Request Filtering settings open under Sites, Default Web Site, FlexiCapture12, Server. On the **Hidden Segments** tab, click **Edit Feature Settings**. Screenshot of the Hidden Segments tab in IIS Request Filtering with the Edit Feature Settings command available. In the **Edit Request Filtering Settings** dialog box, enter a value in the **Maximum allowed content length (Bytes)** field, then click **OK**. Screenshot of the Edit Request Filtering Settings dialog box with the Maximum allowed content length field highlighted.