In the event that you host your sites on a dedicated hosting machine, you would expect that they will perform extremely fast and that the access speed to them shall depend entirely on the Internet connection of the website visitors. Nevertheless, this will not be the case in case the server has lousy network connectivity or uses a network card, which just cannot cope with high volume of traffic. If this is the case, it'll take a very long time for your sites to load if many people open them concurrently or visitors could see error messages. As a result you could lose visitors as most likely many people will never revisit your internet site if they have experienced problems or slow loading speeds. This is the reason why you must pay attention to the network components of any new hosting machine that you purchase and not just to the main hardware like CPU, Random access memory or hard drive.