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 your brother wifi printer keeps going offline then there is nothing to worry. It can be resolved very easily.Wifi network might get some connectivity problems that can result in brother wifi printer keeps going offline or loose connection might be the reason. Just connect the wires properly or re-connect the wifi to get the issue resolved. If you face any further issue you can contact us or visit our website.