ID 17 on Roblox means a connection attempt failure. This error can happen for several reasons.
One common cause is server issues. The game server might be offline or not hosting the game anymore. This stops your connection attempt.
Another reason could be your internet connection. Issues like wireless problems or firewall settings can block the connection.
Browser settings can also interfere. Security settings or ad-blockers might be too restrictive, causing the error.
Lastly, port configuration is key. If the necessary UDP ports (49152-65535) are not open, your connection will be blocked.
To fix this, try refreshing the Roblox page and retrying. Check and configure your firewall settings. On Windows, reset your internet options. Disabling ad-blockers can also help. If the issue continues, contact Roblox support.