Question about Arris SURFboard SBG900 Wireless Router (DHSBG900)

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Can't open my NAT

Hey, there i'm trying to open my NAT to my motorola SBG900 Wireless SURFboard Gateway but i have no clue on going about that? If any one has the solution and is willing to help me out I'd really appreciate it.

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Hi there.. i had that problem too and i just solved it...
heres the thing..
first you go into the router setup page.. which is..
go to the gateway tab
go to port forwarding tab
go to config
thenTemplate --> custom
Name--> whatever
Port start--> 88
Port end-->88
LAN IP address--> check on your xbox on network settings and copy the same ip address.
Enable --> checked
Then click add.
After that.. you will do the same thing but on the port option you will put 3074. add it ..
now your nat should be open. ;)

Posted on Jan 07, 2008

  • berserkidiot Jun 10, 2011

    where is the port option?




Posted on Jul 20, 2008

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It appear NAT is configured through firewall setting. Follow this steps and write down each changes you make.Incase the policy doesnt work you can always revert to original state:
Do not create a custom firewall policy unless you have the necessary expertise and the need to do so. Instead,
select one of the predefined policy templates as described in “Setting the Firewall Policy”.
To create a custom firewall policy, first select Custom and click Apply on the Firewall > POLICY — basic Page.
Then use this page to configure a custom firewall policy:
To select a predefined policy for all packets processed by the SBG900 firewall:
1 On the SBG900 Setup Program left panel, click Firewall.
2 Click POLICY.
3 Click basic to display the predefined firewall policy templates

Posted on Dec 30, 2007

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Nov 19, 2013 | Arris SURFboard SBG900 Wireless Router...

1 Answer

I need to change my NAT to open. It's on moderate right now. I have a Motorola Surfboard SBG900 router/modem.

first if your on windows click start goto run type in cmd and hit enter
then if your directly connected to this router/modem with nothing else in between it type ipconfig /all
you'll get 19x.x.x.x number or something like it under default gateway write it down and then open your web browser. Type in that address into the navigation bar and hit go or hit enter.
You'll get a motorola login screen.
By default factory settings the un/pw should be admin / motorola when logged in goto administrator if it's possible. Then enable UPnP and apply these settings or save.
Otherwise if your behind a router that is in between the motorola modem and your PC. do the same thing start > run > cmd > enter> black box and type ipconfig /all goto the default gateway here enter your un/pw for your router and goto administrator again enabling UPnP.

Mar 07, 2011 | Arris SURFboard SBG900 Wireless Router...

1 Answer

I would like to configure my router to open nat, it is currently at nat type 2. it affects call of duty black ops and sometimes madden. i dont have a user name to get into router website. let me know how...

open up internet browser and goto
enter "admin" for username and "motorola" for password
click "gateway" and navigate to "port forwarding" tab
enter the ip address for the xbox/ps3 as well as entering the ports 53,80,1863, and 3074 in the correct box. once you do the first port, you will understand better how to do this. i would also suggest changing the username and password for the router.

Feb 25, 2011 | Arris SURFboard SBG900 Wireless Router...

1 Answer

I need to make my Nat type open instead of moderate. How do I do that?

I just opened my NAT type to play xbox live...using a SURFboard Motorola.
And this site helped me alot:

but watch this video first, cause it will help out allot too:

With these guides, and bit of web reading from other peoples FAQ's.. I did it.

The guide you need will depend on what modem/router you have.

Good Luck

Jan 13, 2011 | Arris SURFboard SBG900 Wireless Router...

1 Answer

Motorola SBG900 NAT problem.

Nat can be turned off in the sbg900, but not recommended, as it also shuts down the dhcp, which is responsible for providing ip addresses to you PC,xbox etc.. I do not believe there is a work around. Nat sometimes limits certain games, but I have not found any games other than COD that I have ever had problems with. bottom line, if you need to disable nat, then you will need to plug directly into modem.

May 03, 2010 | Arris SURFboard SBG900 Wireless Router...

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Open NAT on Motorola SBG900

Are you managing your network? If no one else manages your network, then the default values should still be in place. Try u = admin and p = <blank> or "admin"

Access the router's page at or or better refer to your model's manual for the IP.


Jul 07, 2009 | Arris SURFboard SBG900 Wireless Router...

1 Answer

Change NAT to open

You need to call xbox live tech support. From there they will give you a code. This code will need to be entered in the settings for you wireless interenet product under "Port range forwarding."

Dec 28, 2008 | Arris SURFboard SBG900 Wireless Router...

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How do i open my NAT w/ my xbox 360 with this router?

You can either disable your NAT (not recommended) or you can port forward. Here is a link that describes the port forward process.


Dec 02, 2008 | Arris SURFboard SBG900 Wireless Router...

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