Network connectivity defines a couple of things - exactly how many people shall be able to look through a particular website all at once and how fast they will be able to perform that. If the connection capacity is low, for example, the maximum throughput may be hit with only a few visitors looking at the site, so newcomers won't be able gain access to the pages, or in a different scenario, all site visitors can have problems. If the capacity is enough, but the hosting server access speed is small, it will require longer for any page on the website to load and this may result in visitors simply closing the website, if they find that they ought to wait for a minute or two just to look through a number of web pages. In this light, if you wish to launch and maintain a profitable presence online, the server in which you host your website should provide both superior access speeds and large traffic capacity.