My 950 is set aside for the most part, but every so often I bring it out to update in case I need to use it as a backup. It shows 1709 being available, downloads it, says there isn't a good time to restart it, so I tap restart now. When I check on it later, it's downloading the update again. I had previously put it on the fast ring so that it could get as far as Microsoft will let it. Any ideas on what to try? Thanks.