In the event that you host your websites on a dedicated server, 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 website visitors. Having said that, this will not be the case in case the server has poor network connectivity or uses a network card, which simply cannot handle high volume of website traffic. If this is the case, it will take a while for your websites to load if a lot of people open them at the same time or visitors might even see error messages. Thus you could lose customers as almost certainly many people will never revisit your site in the event that they have experienced problems or slow loading speeds. That's why you should 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.