# How to replace BBO gateway

It is easy to replace a BBO without making any changes to its MPs settings.

Follow these steps to replace BBO gateway in B3 system structure:\ <br>

1. Replace the broken BBO gateway with a new one.
2. Disconnect all the sensors from the broken BBO and connect them to a new unit.
3. Follow the steps from point 2.3 to configure a new gateway.
4. Open B3 system. Go to Admin -> Infrastructure -> Gateways.
5. Find the exchanged gateway in the list by its name and click edit button.
6. Change the old gateway MAC Address with a new one.

<figure><img src="/files/oJoKSMrqPRFirpy9gqzj" alt="" width="386"><figcaption></figcaption></figure>

7. Save and sign the change.
8. The BBO posts with modified MAC address will be identified correctly in the system. The MP readings shall be registered properly under the existing MPs.

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