This usually indicates that there is a problem with the connection between your school computers and the Istation servers. Try the following: Visit another website that is not cached in your system (i.e., a site that students are unlikely to have gone to from school, such as a car manufacturer site, usa.gov, etc.) to confirm whether the computer has a good connection to the Internet. If you can’t access another site, confirm that district content filtering allows Istation’s IP address range (174.143.0.184 – 174.143.0.191 (174.143.0.184/29)) and Istation.com. Also confirm that there is not any software on the computer that might be preventing the computer from connecting to the Internet.