Question about Arris SB5100 SURFboard DOCSIS 2.0 Cable Modem (50120900100)

1 Answer

Cannot get motorola 5101 to connect to internet with a dual connection just keeps coming up conflictiion ip address

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  • Tim Babcock
    Tim Babcock May 11, 2010

    You can only use either ethernet of USB.  You can't use both or you will get a conflict.  If you need to use two computers on your modem, you will have to purchase a router.

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  • 2,794 Answers

Clarification request is solution.

Posted on Sep 29, 2008

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1 Answer

Connect motorola modemsbSB6121 to Belink N600 wireless router with out losing internet signal


Step one turn on PC directly connected to ModemsbSB6121 without Wi FI router being involved.
Step two go to Command prompt type in ipconfig (press enter)
Step three note IP address of default gateway and ip address issued to P.C.
Step four type in default gateway address into browser and log into Modem.
Step five look for DHCP Server and allocate IP addresses from at least 50 for example 192.168.0.50 starting ip lease ending ip lease 192.168.0.254
Step six connect Wi Router to P.C. via ethernet cable only - remove ModemSB6121
Step Seven shutdown and restart p.c
Step Eight go to Command prompt type in ipconfig (press enter)
Step Nine note IP address of default gateway and ip address issued to P.C.
Step Ten type in default gateway address into browser and log into Wi Fi Router
Step Eleven Change IP address on Router to 2 as example 192.168.0.2. (it has to match in that modem device would have been 192,168.0.1)
(if it was 10.0.0.1 make wi fi 10.0.0.2 make sure subnet mask is the same like 255.255.255.0)
Step twelve Change DHCP Server to off
Step Thirteen may need to set default gateway to MODEM IP address for example 192.168.0.1
Step Fourteen plug modem router into Wi Fi router may need to plug into WAN port on WI FI router .
Step Fifteen shutdown and Restart Computer
Step Sixteen go to Command prompt type in ipconfig (press enter)
Step Seventeen type in PING 192.168.0.1 (if this is modem IP address and default gateway IP addess)
All this above is to avoid IP address conflicts or mismatching
Subnet mask should be 255.255.255.0
either it uses 192.168.0.1 or it uses 10.0.0.1 make sure Wi FI router is set to different address to Modem Router.
I suspect either a clash occurs or your P.C gets a different IP range from ther WI FI DHCP server.
Happy troubleshooting !














Sep 16, 2014 | Arris Sb6141 Surfboard Cable Modem Sb 6141...

1 Answer

Why will it not connect to the internets IP address?


If you reset the modem and ip address will not change and remains same hence it is static ip address.If you reset the modem and the ip address change ,it is dynamic ip address.
You can get the Ip address from your internet service provider.you can check the ip address using the site Ip-details.com .

Jan 25, 2013 | RCA DCW615R Wireless/Cable Modem

2 Answers

I'm using an SB5101 and trying to use a new wireless router with this modem, but the set up is saying I have a static IP address... where can I find that on my computer whil I'm using my old router? thanks


I have one, after finding out how reliable and well-made they are. However, they can be picky during setup, especially since they have a rare 'config IP' address (the number you type into your internet browser's address bar to change the modem's settings). Click here >> 192.168.100.1
See this link for more info.

Mar 21, 2011 | Arris SURFboard SB5101 Cable Modem

1 Answer

My online light blinks on my sb 5101 cable modem and prevents me from getting online


1. check with you ISP as to the connection
2. you may have lost the IP ( internet Protocol) address.
3. You can reset the router by unplugging it for 1 minute and rebooting the computer.

May 12, 2010 | Arris SURFboard SB5101 Cable Modem

1 Answer

Can't acces internet by using Motorola SB5101


You need to input IP and DNS information in windows. I can only help you where to input but you need to contact your ISP for IP address.

Jul 29, 2009 | Arris SURFboard SB5101 Cable Modem

2 Answers

I have a Motorola SURFboard SB5101 Cable Modem a Netgear mr814v2 wireless router, I obtain the ip address on router status but for some reason my internet communication losed. I verified the configuration...


Hi, follow the steps below to configure MR814 with your motorola surfboard:

CONNECTIONS:

1. Connect a Ethernet cable from the modem to the WAN port of the router (isolated port).
2. Connect the computer to the router using any one of the 4 available ports. Please make sure that there is no direct connection between the modem and the computer (either using Ethernet cable or USB cable).
3. Power off the modem and the router after making the connections.
4. Power on the modem and wait for the lights, then power on the router.
RECONFIGURE:
1. Open the browser (Internet Explorer, Mozilla Firefox or Safari).
2. Access the router, usually with http://192.168.0.1
3. Login to the router with the Username as "admin" and Password as "password" (please note that the Username and Password are case sensitive).
4. Click on 'Basic settings' from the left menu and select 'Use Computers MAC Address' from 'router MAC Address' section.
5. Click Apply.
6. Once it updates the settings then power off the modem and the router. Power on the modem and wait for the lights, then power on the router.

I hope this information allows you to resolve this issue.

If I have helped you, please help me, and rate this suggestion with the highest FixYa rating. If you cannot rate this post with the highest rating, then please comment to this post and I will try to help you further.

Regards
Anand

Jul 29, 2009 | Arris SURFboard SB5101 Cable Modem

1 Answer

Cant connect to xbox live need an ip address how do i get one


When the SurfBoard modem is powered up and connects to the internet on the WAN interface, it automatically gets an IP address from your ISP. When another machine is powered up and is connected to the modem via a USB cable, it is automatically using the WAN IP address to communicate with the world. If it is connected via the Ethernet connection, the modem automatically issues it its own IP address for use on the internal network via DHCP. The modem's internal Ethernet connection is 192.168.0.1. The next machine powered on will normally get an IP address of 192.168.0.2.

May 30, 2009 | Arris SURFboard® SB5101 Cable Modem

1 Answer

Limited or no connectivity , can not renew IP address


the IP address must be incorrect..open control panel>>network connection>>select your connection>>check its properties>>then click on networking tab>>open internet protocols>>then select 'obtain
an IP address automatically
OR
set up a new connection

if the problem presist you need to fromat your windows drive

May 05, 2009 | Arris SURFboard SB4200 Modem

3 Answers

Error in Connecting


without the modem plugged into the troubled computer, go to start -> run.

Type cmd and hit enter. A black window screen will come up. Type ipconfig and hit enter. Without the modem plugged in, your ip address should read 0.0.0.0. If not, you have a manual ip address and need to change it to auto.

To change ip address to auto, (in windows xp) go to start -> control panel, or start -> settings -> control panel.

Double click network connections. Look for your local area connection, right click and click on properties.

A window should popup. Scroll down the list to Internet Protocol and click properties again. Make sure IP address and DNS are both set to automatic.

Mar 18, 2009 | Arris SURFboard SB5120 Modem

1 Answer

I HAVE A LINKSYS WRT54G AND A MOTOROLA SURFBOARD SB5101.IT IS A CABLE MODEM.MY LINKSYS PROGRAM ESTABLISHES EVERYTHING BUT INTERNET CONNECTION EVEN THOUGH I AM ON THE INTERNET NOW.CAN YOU HELP GUIDE ME...


The easiest way to fix this problem is to not use the software CD that came with you WRT54G. If you type in the ip address of the router (usually for this model the default is 192.168.1.1) in the web browser, you should come to the firmware on the router. After that, log in to the router (usually the user name is admin and the password is either blank or admin). This will show you all of the configurations for the router. Make sure on the first page you have your router set up as DHCP. This will have the modem give your "router" an ip address from your cable company. From there you can set up you router your self.

Dec 03, 2008 | Arris SB5100 SURFboard DOCSIS 2.0 Cable...

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