Question about Arris SURFboard SB5120 Modem

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New modem connection to existing router

I have a new modem. It works with my desktop but not with my laptops. Please tell me what to do.

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How to develop and configure a PC based router?

Posted on Nov 19, 2008

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I'm trying to connect a new laptop to an existing thompson st585 v6 router but I've lost the network security key. How do I find it?


Login to the web-server "inside" the router, and you can view the current settings for the wireless interface.

Jan 03, 2011 | RCA Thomson Digital Cable Modem (DCM305R)

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My laptop keeps telling me that it has limited connectivity to my telstra wireless modem and will not go on to the internet, please help. its very frustrating!!


this is because your internet link from the router to your ISP is failing to connect.

Thus yo are limited to the router connection.

Mar 07, 2010 | Dynalink (V1456VQH) Modem

1 Answer

Hi, I'm an idiot! PLEASE HELP


you may be suffering from mixed Cat 5 and Cat 6 cabling.
The wiring is slightly different and they don't work well when mixed in routers and modems etc. One or the other will work , but when they're mixed it'll do what you have going on here...

I would recommend wiring everything with cat 6 ethernet cabling. Look on your cable and you will find the labeling on the outer casing.


Sep 20, 2009 | Modems

1 Answer

Connect Laptop to PC desktop which has cable connection.


YOU WILL NEED TO GET A WIRELESS ROUTER TO BE ABLE TO USE THE LAPTOP WIRELESS, iT IS A VERY EASY SET UP AND CONNECT THE DESKTOP WIRED AND THE LAPTOP WIRELESS TO A WIRELESS ROUTER.

May 06, 2009 | Arris SURFboard SB5120 Modem

1 Answer

How many ports does the Netgear DM111P Broadband DSL Modem have? Am I able to connect both my desktop and laptop simultaneously? Thx.


The DM11P is designed to only connect one computer at a time. To have both connected at the same time would require a router. The router would plug into the modem (DM11P) and then your desktop and laptop would plug into the router. If your laptop or desktop can support wireless then you could get a router that also supports wireless.

Netgear make these routers as well as many other companies and they are inexpensive.

Good luck and I hope this helped

Apr 12, 2009 | Modems

1 Answer

My pc won't connect to the internet


It is the MAC address that needs to be scrubbed from the modem.

power off the desktop, power off the modem, unplug the data cable from the modem, unplug the POWER connection to the modem.

WAIT 3 MINUTES

Connect power to modem, let it reset
Connect data cable to Modem
power on computer

Modem should now connect & work with desktop.

Each time you switch between systems, you may have to do this. More than enough to make me buy a router. =)

Please rate the post. =)

Jul 15, 2008 | Arris Touchstone 450a (CM450) Modem

1 Answer

Ethernet Port failure new router


Check the socket in either the router or the PC. I had the same problem, only with my modem. When I inspected the port, the pins were misaligned, causing it to drop a connection. I corrected mine with a screwdriver, which is not ideal but it works.

Jul 14, 2008 | Arris SURFboard SB5120 Modem

1 Answer

Can't connect to laptop


that your router have a Dynamic setting?

Mar 11, 2008 | Zoom X6 Adsl Modem/router Rohs...

1 Answer

Wireless internet connection


I may be able to help with this...but I need a detailed description of how you have things connected between the XP desktop, the cable, modem, the Linksys router, and the laptop. Also, is the Linksys router new?

Typically, the wan port on the wireless router connects directly to the cable modem with a cat5 network cable....then the desktop pc connects to the router...on port 1 for example...with a similar cable. Once the wireless router is set up properly, the laptop should then be able to connect using wireless.

Feb 01, 2008 | Modems

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