| Issue | Likely Cause | Teacher Fix | Student Fix | |-------|--------------|-------------|--------------| | "Game not found" | Code expired or typo | Regenerate a new code | Double-check digits; refresh page | | Lobby freezes | Browser cache overload | Use "Refresh Lobby" button | Hard refresh (Ctrl+Shift+R) | | Nickname rejected | Contains banned word or duplicate | Adjust profanity filter settings | Add a number (e.g., "Alex7") | | "Join" button greyed | Game already started | End current game and re-host | Wait for next round |

The join process is deliberately simple to maximize instructional time:

Once you are in the game, the objective depends on the :

For classes of 30+ students, a slow join process can waste 5–7 minutes. Proven efficiency tactics include: