I have some people that have Internet access block. When I close and delete cache of his browser, they can navigate a few moment. When I look in Dansguardian log's, I found the action «*SCANNED*». What dos'it mean ? Is it why they are block in Internet ?

Meaby, my ClearOs doesn't have enought ressource (RAM) for all working tread ? I have Clearos Pro 6.6