Question about Arris SURFboard SBG900 Wireless Router (DHSBG900)

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Connect Wirelessly on SBG900

Ever find out how to fix the wireless portion of the SBG900 so you can connect wirelessly? I'm having the same issue with my SBG900 and motorola couldn't help me. Who is your ISP?

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  • angesem Jul 04, 2008

    I am also having a problem connecting wirelessly through the Motorola SBG900. I have Comcast cable and even though they use the same exact router they will not help me because I did not get it from them. Their answer is for me to get a new router from them so that I can have the solution to the problem.My laptop in another room says that it's a preferred connection and showing 3-4 bars out of 5 but it doesn't want to connect via the router. If you ever get the solution to this pproblem, please post it so that I can fix it and I will do the same if I happen upon the solution.


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Your wireless adapter may not support 11g Enhanced wireless, which was my issue. Check your settings @ and try switching to 11b/11g Standard wireless.

To get there, go to, Click "Wireless" on the left side, then click "Network" on the top.

Also, set the router to channel 11 for best results. (In my case, usually channels 6-11 work best)

Posted on Feb 17, 2009

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Hello Friends!

Amongst the DOCSIS 2.0 compatible cable modems that I have worked with - from the end user perspective - this is one of the best to work with. Not that there are any that are that great, but of cable modems, the feature set is more robust than most of the others I have used. With built-in wireless capability, firewall support, port-mapping, MAC address ACL, WEP and WPA, sadly, these features make it more advanced than most devices of this category. This is probably due to the cable industry dragging its feet in embracing much of an industry-wide technology standard.

Enough preaching.

You're in luck. Out of the box, this device will start broadcasting its default wireless network (named "Motorola"). The built-in DHCP server will be enabled, network security will be disabled and you should be able to join the wireless LAN, receive an IP address from the DHCP server and connect immediately.

As for the Comcast techs, I disclaim first that I have never had to speak with them. I have worked with reps from TWC, Adelphia and Cox. If Comcast outsources much of its call center work to companies like USA Telepresence, as Time Warner Cable has been known to do, you will have to go through, on average, a series of four tier one customer service representatives before you get one who will A) actually want to help you and B) know that they can't help you but will actually need to transfer you to a tier two technician who will need to provision your new device.

It's sad, but true. Calling customer service these days is a crapshoot. So keep rolling the dice until you get a good rep who will ask you for two pieces of information: the MAC ID for the Motorola SBG900 (you want to give them the one on the label on base stand of the device that is titled "HFC MAC ID") and the make/model of the device.

The good news is, once you get tier two tech, they are generally well-trained, intelligent, and motivated to get your problem solved. Just let them know the basics of your sitch, and if you feel confident you know what you're talking about, let them know that you just need them to provision your new cable modem.

Hope this helps!

Posted on Feb 01, 2009

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We just tried to secure our wireless motorola sbg900 and now the wireless portion doesn't work. We have to use an ethernet cable. How do we reverse this and still make it secure?

To change any wireless settings on the router, you will need to make wired connections to the router.
If you change the wireless settings on the wireless laptop it will drop the connection because you are changing a wireless setting.
Click Here for more info about networking

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I need to secure my wireless router

When you first setup a wireless router you need to connect the wireless router to the computer with a LAN cable.
Then you open a browser such as Microsoft Internet Explorer and on the address bar you type the IP configuration address of the wireless router eg. for Netgear and D-Link wireless it is
Enter the default login name and password.
You should change the password and you should setup WAP or WAP2 encryption (WAP2 is the strongest encryption) and change the SSID and turn off SSID broadcast.
For further wireless protection enable MAC address filtering. The MAC address of the wireless card is entered in the router MAC address filter table, which allows only the wireless card with this MAC address to connect to the router.
The wireless card on the computer needs to be configured with the wireless router's settings. The LAN cable can be removed and the computer communicates wirelessly with the router.

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Wireless Doesn't Work - No light.

If someone else setup the router for you they may have turned off the wireless. If you can connect via ethernet use the web based configuration utility to turn it back on.

The intial setup is as follows in the manual:

To provide an initial wireless connection to your network and the Internet:
1 Connect the SBG900 to the cable TV system as described in Section A.
2 On each wireless client computer, install the wireless adapter hardware and
driver software according to the manufacturer's instructions.
3 On each wireless client computer, set up a wireless adapter profile to
“connect” the client to the SBG900. The procedure depends on your
wireless adapter and computer operating system.
In your initial profile, use the SBG900 default wireless Network Name
(ESSID) motorola (case-sensitive).
Your computers are connected but not secure.
The default SBG900 settings provide no wireless security. After
your wireless LAN is operational, be sure to enable security as
described in “Setting Up the Wireless LAN” in the SBG900
User Guide

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Are you sure your computer is compatible for the wireless, and does it have the necessary drivers?

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Try turning off encryption on your router if it is on. Many times the macs can have an issue with encryption.

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