Originally Posted by VONHARRIS

Are you playing at 100% realism?
If yes , then you can not teleport to base. You have to be the max 30km away from the harbor to dock , or literaly enter the port and dock.

There is a file in the .cfg folder :GameplaySettings.cfg

At the end of the file there are the values of the various settings.
Change one so that the total is less than 100
Save and run a patrol.
Try to teleport now.

KEEP A BACK UP OF THE ORIGINAL FILE. It is crucial.