Issues with Time Warner Motorola SBG6580

April 24, 2013 in Networking, Tech

After a few days of getting frustrated trying to find out why I could not access my home storage outside of my network, I decided to do a little research.  I knew I had setup everything correctly on my router (Cisco E4200), but for some reason the ports weren’t open. Turns out this was because of the initial TW modem setup by their tech.  Basically I just need this to be a “dumb” modem and not a modem/router. So following these steps I was able to accomplish that.

  1. Unplug coaxial cable from the Motorola modem
  2. Hold down the  reset button on the back panel with a pen for 30 seconds, this will reset all settings to factory defaults. The modem will be auto-reconfigured once you plug in the coaxial cable.
  3. When modem is back on hook your computers ethernet cable into the modem.
  4. Once you have a connection, open your browser and go to the address and login with the user name “admin” and password “motorola”
  5. Your going to make a few changes to the configuration:
  6. Wireless -> Primary Network -> Disabled
  7. Basic -> Setup -> NAPT Mode -> Disabled
  8. Basic -> DHCP -> No
  9. Advanced -> Options -> Rg Passthrough -> Enable
  10. Copy and save the LAN Mac Address from the Basic > Configuration Section
  11. Then go to Advanced -> Options -> Passthrough Mac Addresses -> and Add the LAN MAC Address that you copied & saved.
  12. Save all the settings and then plug the coaxial cable back into the Modem & power cycle it.
  13. Unplug your computers ethernet cable from the modem and plug it back into your router.
  14. You should now be able to forward ports correctly on your own router.

Now all the port forwarding I had set up previously is working ( and yours should too).