Can The Division 2 be played offline?
Best answer: No. The Division 2 requires players to be connected to the internet since it's a shared-world experience and relies on its servers.
You can play The Division 2 completely solo through the campaign and its endgame, but you'll still need to be connected to the internet. It is a shared-world experience, meaning other players inhabit the map with you. It's similar to Destiny in this regard. You don't need to team up or go up against other players in PvP, but you'll always need to be connected to the game's servers in order to play. There is no way to do this offline.
If you find yourself outnumbered, outmatched, or just stuck without any idea how to progress during a mission, other players can come to your aid if you call for backup. It's a lot easier to take down enemies as a group. And you may find that you end up having a lot more fun in a group than you thought you would.
It's unknown if an offline mode will ever make its way to The Division 2, but it seems unlikely. People frequently asked for an offline mode with the first game and nothing ever materialized. This is just one type of genre that doesn't lend itself well to an offline experience.
Stranger things have happened, though.
Unfortunately, there's not much you can do. To get the best connection possible, we'd recommend using an ethernet cable. And if you are just having troubles with slow internet, there are a few steps you can take to try and fix it.