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.
- Unplug coaxial cable from the Motorola modem
- 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.
- When modem is back on hook your computers ethernet cable into the modem.
- Once you have a connection, open your browser and go to the address http://192.168.0.1 and login with the user name “admin” and password “motorola”
- Your going to make a few changes to the configuration:
- Wireless -> Primary Network -> Disabled
- Basic -> Setup -> NAPT Mode -> Disabled
- Basic -> DHCP -> No
- Advanced -> Options -> Rg Passthrough -> Enable
- Copy and save the LAN Mac Address from the Basic > Configuration Section
- Then go to Advanced -> Options -> Passthrough Mac Addresses -> and Add the LAN MAC Address that you copied & saved.
- Save all the settings and then plug the coaxial cable back into the Modem & power cycle it.
- Unplug your computers ethernet cable from the modem and plug it back into your router.
- 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).
I knew you would figure it out.
Ha, took a few days to research and then make time to bring my connection down 🙂
Or … you could just buy your own “dumb” DOCSIS 3.0 modem (transferable across cable ISPs) and save yourself the rental fee. Time Warner should have a list of compatible modems somewhere.
Good tip, though 🙂
True, but when I signed up I was able to get them to waive the rental fee. Or that is what I would have done. 🙂
Brilliant 🙂
ok dennis, question:
why the LAN over the WAN mac address of the modem? this modem has its own mac address, a LAN mac, and a WAN, so if one does the WAN, would there be any differences in speed or is there a reason why the LAN mac over the WAN mac?
I do not believe there would be in difference in speed. The LAN MAC address is used as a pass through so all of the settings I have on my router will be used and the Motorola will be used as the pass through.
ok thanks for the reply, now can u tell me what the difference would be in using the LAN mac over the WAN? as i also have the cisco e4200 and ive seen it done both ways…so not sure if i need to use the LAn or WAN in order to completly bridge this and make the cisco the end all be all as far as routing is concerned?
I have seen it done both ways too. I couldn’t tell you which would be more beneficial. I just need all my local (in home) traffic to be handled by my e4200 so I used the LAN mac.