In case you host your websites on a dedicated hosting server, you would expect that they will perform ultra fast and that the access speed to them will depend exclusively on the Internet connection of the visitors. Having said that, this is not going to be the case in the event that the hosting server has lousy network connectivity or employs a network card, which just cannot deal with high volume of traffic. If this is the case, it shall take a while for your internet sites to load if lots of people open them concurrently or visitors may see error messages. Because of this you could lose website visitors as most probably many people won't revisit your site in case they have experienced problems or slow loading speeds. This is why you must pay attention to the network components of any new server which you purchase and not only to the main hardware like CPU, Random access memory or hard disk drive.