In case you host your websites on a dedicated server, you would expect that they'll perform ultra fast and that the access speed to them shall depend solely on the Internet connection of the website visitors. Having said that, this will not be the case if the server has lousy network connectivity or uses a network card, which just cannot cope with high volume of traffic. If this is the situation, it shall take a long time for your websites to load if a lot of people open them simultaneously or visitors may see error messages. As a result you may lose website visitors as most likely many people will never return to your internet site if they have experienced issues or slow loading speeds. This is why you should pay attention to the network components of any new server you acquire and not just to the main hardware which includes Central processing unit, RAM or hard disk.