Series X won't connect to online games.

I own the game on the Xbox series x but it won't allow me to connect the game to my profile which is on the Xbox series x and so it does not let me play online, If that makes sense.

Same here.

I upgraded from the ultimate pass on Xbox one X to the series X but it won't let me claim it on the series X.

Also Tetris connected won't open either.

All Xbox One games (except Kinect games) are compatible with the Series X. So yes, it will work.

It runs On my series x but it won't go online and its laggy is there an solution for this?

Ist fully updated.

Fair enough, a slow internet connection is as good excuse as any.

Be aware however that while that drive will work on Series X, you won't be able to play Series X games directly from it. Series X games will require faster access and read speeds. My understanding is that the Series X games can be 'backed up' on an external
drive and then need to copied/moved over to either the internal SSD or the External SSD's that will be available for the machine.

The Series X will read and play Xbox One games from an external drive though.

Hi,

Online gaming on a console and a PC can have two types of latency:

Lag is when we are referring to internet connection/server latency. Owning the latest Xbox Series X|S won't fix this, if that's where the problem is.

Framerate and framerate drops are console hardware game specific. If the game is designed to run at 60fps, but there is a lot of things going on on screen this will result in dropped frames and can be seen during play as a stutter/judder, screen tearing and reduced controller responsiveness.

The Series X (and even the Series S) have much more capable hardware and generally won't drop frames in heavy area's like the now quite old Xbox One S does.