How To Configure Your Motorola SBG6580 Router In Bridged Mode

Recently my Time Warner provided Motorola SBG6580 router has been just sucking. Random disconnects and the inability to handle 2 Xbox’s on the same network have made me mad enough to figure out how to break in the router and make it into a modem to connect my real router up to it.

Below are the steps that I have found to get your SBG6580 router into bridged mode.

  1. Unplug coax cable from Motorola
  2. Hold down the white reset button on the back panel with a pen for 30s. This resets all settings to factory defaults. The modem will be auto-reconfigured once you plug in the coax cable.
  3. When modem is back on plug in a computer with an Ethernet cable into the modem.
  4. Connect to and login with “admin” / “motorola”
  5. Now you will make some changes:
    • Wireless -> Primary Network -> Disabled
    • Basic -> Setup -> NAPT Mode -> Disabled
    • Basic -> DHCP -> No
    • Advanced -> Options -> Rg Passthrough -> Enable
    • Advanced -> Options -> Passthrough Mac Addresses -> Add WAN MAC Address of your router > Configuration section
  6. Save all settings and plug the coaxial cable back into the modem and power cycle it.

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38 thoughts to “How To Configure Your Motorola SBG6580 Router In Bridged Mode”

  1. What router did you use and how did you set it up? I am having the EXACT same problem and the motorola tech told me I could not do that :(

    I want to throw the stupid thing out the window and I legit need all the help I can get to make this stupid thing work.

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