Please check with your school or district’s IT department to ensure that they unblock the following domain: killersnails.com They should not limit it to just the www prefix (ie: www.killersnails.com) since other subdomains will also be accessed by different products. For instance, to login to Killer Snails Account, you will need access to accounts.killersnails.com. For BioDive, you will also need access to biodive.killersnails.com. We would be happy to speak with your IT department to help assist with this process- please contact us at info@killersnails.com