Error Code: 2306-0820
Description:
- You are unable to play a limited-time online demo, such as the Arms Global Testpunch or Splatoon 2 Global Testfire.
- You receive an error message "This service is currently unavailable", when attempting to play online.
Players can only launch and play special online demo events during the designated session times.
For the latest information on these or related events, visit the official Nintendo website.