Question about Arris SURFboard SBG900 Wireless Router (DHSBG900)

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Router/modem? Forgive my stupidity but is this SBG900 both a router and a modem?? I have had this device for 2 years installed by someone else and it has worked inefficiently for the whole time, momentarily disconnecting me from the internet, then connecting again a split second later. I have learned to live with that. Yesterday, however, i bought a laptop and cannot connect to a website (even though I am connected to the Motorola). Someone suggested that some modem/routers do not support Vista. Others have suggested that I buy a new router. Does that mean I have to buy 2 devices or are they both the same?Thanks for your time.

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Re: router/modem?

Your device is a combination Cabal Modem and Wireless Router with a fairly limited security screening profile. While it is doubtful that the problem is the OS on your notebook, it could easily be the wireless network card in your notebook that is the problem.

In this instance replacing the unit is probably the best way to go, as there are much better units available for much less money and in addition you will have full access to the configuration of the router and its security and connection settings.

To replace this device with one new device simply be certain to get a Cabal Router/Modem with Wireless Access.

Posted on Nov 14, 2007

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This pdf is the manual for your modem:

Page 7 on the document contains a picture of your modem's back side. You'll notice a recessed button that will RESET the modem back to the default values, which include username and password. Press this for at least 5 seconds.

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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
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Go to,find your router in the device list and follow the instructions. Works great for me.

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Unpluging the router

When turning off your network always do this:
This should be in the exact order
1.turn off computer
2.turn off router
3.if necessary, turn off modem

To avoid having this problem again, you can just leave your modem and router on all the time, anyway this devices are designed that way(thats why they do not have a switch).

Proper way of turning on the network
1.turn on the modem, wait for 1 minute
2.turn on the router
3.turn on computer

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