If you host your sites on a dedicated hosting machine, you would expect that they shall perform extremely fast and that the access speed to them shall depend solely on the Internet connection of the website visitors. However, this will not be the case in case the hosting machine has poor network connectivity or uses a network card, which simply cannot handle high volume of site traffic. If this is the situation, it will take quite a long time for your websites to load if lots of people open them simultaneously or visitors might even see error messages. Consequently you might lose site visitors as probably many people will never return to your site if they have experienced problems or slow loading speeds. That is why you need to pay attention to the network components of any new hosting server you buy and not only to the main hardware like Processor, Random access memory or hard drive.