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 will depend exclusively on the Internet connection of the visitors. However, this will not be the case in case the hosting machine has poor network connectivity or uses a network card, which simply just cannot deal with high volume of traffic. If this is the situation, it will take quite a long time for your sites to load if a lot of people open them at the same time or visitors could see error messages. Because of this you may lose customers as in all probability many people will not return to your website if they have experienced difficulties or slow loading speeds. This is why you must pay attention to the network components of any new hosting server which you buy and not just to the main hardware such as Central processing unit, RAM or hard drive.