In the event that you host your websites on a dedicated server, you would expect that they shall perform ultra fast and that the access speed to them will depend exclusively on the Internet connection of the visitors. However, this won't be the case in the event that the hosting machine has bad network connectivity or employs a network card, which just can't deal with high volume of website traffic. If this is the situation, it'll take a very long time for your websites to load if a lot of people open them simultaneously or visitors could see error messages. As a result you might lose customers as almost certainly many people won't revisit your website in the event that they have experienced difficulties or slow loading speeds. This is why you should pay attention to the network components of any new hosting machine you purchase and not only to the main hardware like Central processing unit, RAM or hard disk drive.