No internet connection, fiber optic LED remains off. Activation date is today

Welcome to the KPN forum @ShaneHuysacker! I'd be happy to help. Having said that, the forum isn't the fastest place to get this help. Our customer service line, 0800-0402, is always the fastest way to get in touch. Though keep in mind not all our employees are fluent in English. So it may help to keep a Dutch-speaking person handy. 

On topic of the connection itself, on the activation day you are to receive a text message. This is to indicate the connection is ready. Have you received this signal?

Could you also let me know how you've installed the fiber box? Did it fit like it said on the installation guide? Could you place a picture of the installed fiber box?