It depends. Check each of your DL courses to determine if SOLO is required.
Faculty and Programs have the option of requiring the orientation. Additionally, the instructor of your DL course has the option of dropping you from his/her course during drop/add week.
Until you complete the SOLO orientation, you may be restricted in this way every term.
Note: Some faculty and programs require you complete this orientation, in order to remain in their DL courses. Look for an email or announcement in each of your registered DL courses to determine if this orientation is required by your faculty.