Since I do not know your computer specs, I do not know the exact cause of this. However, make sure that your internet connection is not weak. Also, another factor can be the DNS or Firewall. Generally, when you are on a public network or a network with blocked programs, many programs cannot run, such as Wizard101. I experienced this myself while going to work and trying to play. For this I recommend you look up how to allow a program for your network on a site such as Youtube. For the DNS, make sure that your service provider is not having a service downage in your area. This can cause your internet to be "connected" but not actually load or connect to any sites or load an internet-based program such as Wizard101.