Suddenly, overnight the NAT changed from open to strict. I have had no problem playing destiny for a long time. But for a few months everything has gone to waste. Not being able to do matchmaking and weasel errors, all this with the same internet company. Focusing on the subject, now I have strict nat, I have tried to solve it by entering my router, making changes to the PC, etc... but nothing. The funniest comes next: Last Tuesday I went to a friend's house, I took everything; the pc, screen, keyboard, etc... we set up a small LanParty at his house with more friends and some of us decided to go in and play destiny. To my surprise, being all in the same network, it seemed open to them and strict to me; and not only that, but when I go to the settings - gameplay and look at the network data settings the internal port of the UPnP router is fine (3097), but the external port of the UPnP router was 42043. When I closed the game and reconnected I skipped strict Nat again, but not only that but also every time I logged in, the external port of the UPnP router changes. Remember that all this is on the same network. I still can't do matchmaking and when I search for a game I know that I searched for a while and the weasel error all the time. I am starting to think that they have banned me and I have only been able to play on PC 4 times since before covid, because I always played it on ps4. Please help. (I have all the expansions and everything on PC also on steam) Updated information. I have no problems on the console, I tried stadia (which is running out for me) and I have no problems either. So why is steam the only platform I'm having problems with?