- Reboot your modem to remove all previous configurations that could disrupt the b-box.
- Consult the support pages of the console manufacturers: Nintendo, Xbox or Sony.
- Open the ports on the b-box if the console or game prompts you to do so. If necessary, enter the username and password you use for an internet connection.
Activating the DMZ on your modem's console is not recommended as it will result in all protections being removed for the device in question at the level of the modem.