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Netcomm Bridge Mode

What's happening

We've identified a known issue affecting Netcomm routers configured in Bridge mode. In some cases, the connected device (such as a firewall or router) ends up receiving a private IP address from the Netcomm itself, instead of the intended public IP passing straight through via Bridge mode.

Why this happens

This occurs when DHCP is still enabled on the Netcomm's settings after the service has been switched to Bridge mode. For Bridge mode to work correctly, DHCP must be properly disabled, otherwise the router continues assigning IP addresses locally instead of passing the connection through.

How to resolve it

  1. Update to the latest firmware available for your device.

  2. Perform a factory reset after the firmware update to clear all existing settings.

  3. Remove any default Internet Profiles.

  4. Use the Quick Setup Wizard to configure VDSL/IPoE Bridge mode.

  5. Confirm that DHCP is Disabled on the LAN page.

  6. Disable Wi-Fi on both the 2.4GHz and 5GHz bands.

  7. Reboot the router for the changes to take effect.

Important note

For IPoE Bridge mode to work correctly, DHCP must be turned off properly. If any other device connects to the router, whether through another LAN port or Wi-Fi, while it's in Bridge mode, it can hijack the connection, since Bridge mode passes the IPoE session through to whichever device claims it first.

Accessing the router for management

Once in Bridge mode, the router's management interface won't be reachable the normal way. To retain management access, connect an additional device or port to a separate port and configure it with a static IP, this gives you a way to reach the router for ongoing management without interfering with the Bridge mode connection itself.

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