Question about RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

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Need IP address for this modem - RCA DCM425 DIGITAL CABLE MODEM (RCADCM425)

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The default IP for these is //192.168.100.1, I believe.

Posted on Oct 14, 2010

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Posted on Jan 02, 2017

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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

Talk talk, technical assistance


How did you connect the computer to the router. If you are using a DSL modem it will have a DHCP server in it that is allocating IP addresses across your network. If you added the router to the computer via a hub or network switch what is the computers ip .
address. Remove the WI FI router - turn off P.C and then Go to cmd or dos prompt if windows based system and type in ipconfig and press enter to see if ip addresses are 10.0.0.2 if they are your dlink router uses 192.168.0.1 so you need to make the dlink router ip addressand subnet setting to match the Modem ip addresses of the DHCP server. Change the ip address of the dlink router to be 10.0.0.2 and change the modem to allocate DHCP IP addresses from 10.0.0.10 to 10.0.0.255. Only do this if IP addresses are 10,0,0,1 to 10.0.0.,254 on the desktop p.c with the dsl or cable modem connected.without the router being involved. (you may need to ask the ISP what the user name and password is of the modem and it should be ip address xx.xx.xx.1 so type this into a browser to change the modem settings. 10.0.0.1 or 192.168.0.1 just remember if the modem is 192.168.0.1 so is the Wi router from d-link and you will have an ip clash problem)
. How do you do this by ethernet connection from only the desktop directly with only the Wi FI . router. Go to a internet browser and type in the URL 192.168.0.1 and then change the router ip address to match what the DSL modem DHCP issues..
Page 14 of Router instructions see http://files.dlink.com.au/Products/DIR-615/Manuals/DIR-615_C2_Manual_v3.10.pdf
in the manual it states to use a direct ethernet connection for the setup program but you need to be connected to the internet for it to work but if the IP addresses are wrong or clashing will have no internet. You also want to set the modem as the DCHP server and disable the DHCP server in the set up of the wi fi tand set the WI FI router default gateway as the ip address of the Modem. if any DHCP server options in the WI FI router sert to the modem ip address. .

Sep 08, 2014 | D-Link D Link Dir 615 Wireless Router...

1 Answer

ZOOM V92 IP address


If you need to find the ip address of your modem then connect to your network(internet).And then open IP-Details.com here it display the ip address of your modem.

Feb 02, 2014 | Zoom (56K-V92) Modem

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

1 Answer

Chaneg ip


There are two types of ip address available..One is static ip address it will not change forever...But another ip address is Dynamic ip address.It will change..If you need to change dynamic ip ,you can reset the modem it will assign new ip address for you...everytime you can reset the modem and get new ip address...It\'s possible only if you have dynamic ip...You can check whether your isp provided ip is static ip or dynamic ip by visiting the site IP-DETAILS.COM

Sep 15, 2012 | Computers & Internet

1 Answer

I have a lap top,i bought a router Q.how can i connect without lost the office internet line?


jromero608

To connect your router to your network with out losing your Internet connection will depend on what kind of modem your have. If you have a modem with a built in router in it you can connect it to one of the extra network ports on the modem.


However if your modem does not have a router built into it you will have to disconnect the modem for a short time to connect the router into the network.

Note if your have a modem with a router in it the best thing to do is let it keep assigning IP addresses and turn on the DHCP server in your router and use it just as wireless access point. To do this you will need to set it to the same IP group that you already have on your network. So example if your modem has an IP address of 192.168.5.1 you will want your router the routers IP address to 192.168.5.2. The third number section is what is important. If you do not currently know the IP address of your modem and it is connected directly to your computer the link below will help you determine the IP address of the modem. The IP address listed as the gateway IP address should be the IP address to your modem. Note if you already have a router in your network this will be its IP address.

http://www.fixya.com/support/r4935363-determine_computers_ip_address

If you need more help and/or have trouble getting everything setup let me know the make and model of your network devices and how you have them connected so I can see what we need to do to get you setup with your new router.

Issken
http://www.fixya.com/users/issken

Oct 06, 2010 | Computers & Internet

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

I have to power cycle modem as I keep loosing IP address


Depending on the internet provider, most IP addresses are set for a certain amount of time before the lease on them is up, in most cases the modem automatically renews the lease and the modem keeps the same IP address. In some cases, when the lease expires, the modem receives a new IP address from your ISP's dhcp server. In rare cases, the modem does not receive an IP address due to either a failure in the hardware (of the modem, hence faulty modem, time to replace) or the firmware on the modem needs to be upgraded. To upgrade the firm ware on the modem, a call to your ISP's tech support should solve that.

Mar 24, 2009 | Cnet CWR-905 Wireless-N Router

2 Answers

How did i change the ip


Your internet service provider only able to change your external ip address. The only way to change it own by using proxy sites or ip hide software's. Online proxy sites are simple and free of cost . But they worked for some periods only. So you can always check your ip is hide or not at Ip-Details.com

some free online proxy sites
hidemyass.com
hidemyip.com
boomtunnel.org
anonymous.org

Jul 15, 2008 | Arris SB5100 SURFboard DOCSIS 2.0 Cable...

1 Answer

Xoom x6 adsl modem problem


possible issue with freequent connection loss when going over 2 comp on a network are possible issues of collisions on the network meaning that sometimes more often then not, it is possible for two comp to end up recieving same ip address fr modem.

 

solution: first find out ip range supplied by the router in modem. then statically assign ip address to each comp

 

this is done by going into tcp/ip properties of either nic or wireless card and set to use following ex

NOTE: IP RANGE USUALLY LAST SET OF NUMBERS IN IP ADDRESSING TIPPICAL RANGE IS BETWEEN 10 TO 99

ip address: 192.168.2.12 (static ip address for computer)

subnetmask: 255.255.255.254 (generic subnetmask)

default gateway: 192.168.2.1 (ip address of router)

Oct 18, 2007 | Zoom X6 (5590) DSL Modem (55900003)

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