I really don't think anyone would know when the maintenance will be done. Every time they have done maintenance in the past, it was seldom more than a few days but depending on the problem and what it relates to, it could take longer. As you might guess, networking can be extremely complex and when you change something, it can and often does, make other things changes and not always for the better. I usually take some time and try other options like open air antenna, Netflix or whatever. So far, its proven to work out for the best when appreciation and patience are used to express thanks to those working in the maintenance department.