May I ask why it can't be activated o working ?
Segwit can't work until it is activated. Segwit is currently not activated, it is only locked in. This means that it will become active after a certain block height, 481824. It is currently not past that block height.
There is about one more week remaining before segwit goes active. Does anyone anticipate anything dramatic to occur or to witness any dramatic changes?
I was thinking that spam attacks might go up after segwit goes active to create the impression that segwit is not helping anything, but I could be too pessimistic in my current tentative expectations.