If you are on 1.03.6j then NEVER downgrade your router as you WILL brick the router. You will automatically be on 1.03.6j if you ordered on or after 20/11/2017. 1.03.6j does not have any new features over 1.03.6g/h/i. Please follow all instructions very carefully. DO NOT ASSUME YOU'RE ON 1.03.5m PLEASE CHECK FIRST. If you are on a version lower than 1.03.5m please do not upgrade yet. If you are on 1.03.6h/i/j YOU DO NOT NEED TO UPGRADE. You are on the latest version. The only dif