Hello, I am Sheldon and I am an Samsung customer executive.  Samsung printers are one of the best printers in the market.It is very efficient and easy to use.If your samsung printer keeps going offline you can check whether your printer is on or not.If it is on then check that the USB cable is inserted properly. If the samsung printer keeps going offline problem still occurs then you have to change the USB cable.Following these steps will resolve your issue.For any other support you can contact us or visit our website: https://printersofflines.com/samsung-printer-offline/