Having an internet connection these days or to get wired most of the time in a day especially if you are working online. But you cannot always rely on the stability of internet connection that is why we can make a way to be productive when there is no interenet connection:
Write articles on word processing program then post when connection resumes. Write as many as you can so you can have an increased output for the day.
Learn other programs depending on your interest.
Check and organize your photo collection. These collections becomes disorganized sometimes and it is an opportunity to organize them according to your category.
Relax instead if you do not want to have much activity while there is no internet connection. We are always busy when we are wired, but taking slow is good sometimes.