Good morning and thank you for posting on the Final Fantasy XIV Technical Support Forums.

First i should mention that we have had some network issues over the weekend. I'm not sure if this is contributing to your issue, but it is a potential cause.

I do have a few questions about your issue:

What platform are you on (PS4, PC, MAC)?
When did this first start happening?
What kind of connection do you have (wired or wireless)?
If you were to queue using Duty Finder and not teleport, do you have any disconnecting issues?

We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!