Hello, I am Sheldon and I am a Brother  customer executive. Brother is the best wifi providing company in the market. It is very handy and easy to use. The quality of the printouts is also very good. Connectivy issue in Brother printers is very rare, but If somehow the questions arrives why is my brother printer offline , there is nothing to worry about it. It happens because of issue in wifi or maybe the cables are not connected properly. Just check this things and your printer will start working again. If you face any further issue you can contact us or visit our website.