When brother printer keeps going offline on the windows computer or network. It means, something is wrong with the computer or network settings. here are the guide to troubleshoot the problem. 1. First of all, you need to check the wifi connection on the brother printer. make sure your printer is connected to the wireless network. 2. Now check the wireless connection on the phone. make sure that your pc is connected to the similar network. 3. Sometimes, Brother printer shows offline because of the computer settings, you need to set the printer as default. 4. Remove the printer from your computer and then re-add the printer again. It will start working fine for you. In case, if you need more help. you need to visit :