i am writing this on a ipad because after updating to high sierra, the ethernet connection & the wifi are not working on my macbook pro. Have followed one recommendation and removed wifi settings from config & restarted & it works for a bit & then goes back to being disconnedted, but it's saying everything is connected???? Doesn't matter whether it's ethernet cable or wifi it's not working. Is there an easy way to go back to the previous version of OS in order to eliminate the resetting network config settings every day. Also what happened to the "assist me" in the network connection preferences list? It was helpful to use in the past, but now all that is there is the advanced version. NOT GOOD!