No Internet Connection Between Router and Modem

[danisgod]

Hello,

No Internet Dilemma!

Ive been trying to help my friend out for the last couple of nights
with his new home networking setup.
All he wants is to connect to the internet via his laptop over
wireless while having his home desktop PC hooked up to the cable
modem.

So we have the basic bog standard setup (or so id think)

Internet --- MOTOROLA SB4200 SURFboard cable modem --- AzureWave 54g
Wireless 4-Port Cable Router
http://www.maplin.co.uk/Module.aspx?ModuleNo=218646&C=Maplin&U=SearchTop&T=ROUTER&doy=21m8

So After hours of troubleshooting at getting idiotic Windows
Vistas due to its unreliability we finally reolised that the router
wasnt picking
up an internet connection from it cable modem.

Im all out of ideas now and thought id try my luck with this forums...

Hope to hear from you all soon

Thanks, Dan

 

[R. McCarty]

Have you logged into the Router and setup the proper connection
type ? ( Dynamic ). Also while in almost all router interfaces there
is a status page that shows your connectivity.

 

[Gary S. Terhune]

Are you sure the cable modem is getting internet? Tried hooking directly to
it?

 

[danisgod]

Have you logged into the Router and setup the proper connection
type ? ( Dynamic ). Also while in almost all router interfaces there
is a status page that shows your connectivity.

Yeah Ive logged in and checked all the information and all seems to be
in tact. My thoughts are that the modem not work properly

 

[danisgod]

Are you sure the cable modem is getting internet? Tried hooking directly to
it?

Hehe

Im 100% sure of this, plugged the USB into the laptop to double check
it was working correctly

 

[Mark]

Hehe

Im 100% sure of this, plugged the USB into the laptop to double check
it was working correctly

How about through the network cable?

mark

 

[Guest]

Have you enabled a range of IP addresses so that more than one pc can use the
Router? Generally speaking the router is set to enable only one pc at a
time, so you need to add a range of ip addresses so that more than one pc can
connect via the home network. also does the laptop have the proper interface
to connect to the wireless and is it enabled? ie if IR is the IR interface
enabled in the bios? or wireless (whatever method your using)

 

[Patrick Keenan]

Yeah Ive logged in and checked all the information and all seems to be
in tact. My thoughts are that the modem not work properly

If you connect the first PC, probably the desktop, directly to the cable
modem, do you get Internet service?

Some, particularly older cable modems required hard resets, even calls to
the cable company, to allow changes to the connected device. They verified
using the PC's network card MAC address.

For this reason, most routers have a "clone MAC address" function. You log
into the router from the working PC, clone that MAC address, and the the
router can pick up an IP from the cable modem.

HTH
-pk

 

[Patrick Keenan]

Have you enabled a range of IP addresses so that more than one pc can use
the
Router? Generally speaking the router is set to enable only one pc at a
time,

I don't think I've ever seen this kind of limitation. Most routers I see
are set by default to issue a range of about 50 addresses via DHCP, and
permit a total of around 253.

so you need to add a range of ip addresses so that more than one pc can
connect via the home network. also does the laptop have the proper
interface
to connect to the wireless and is it enabled? ie if IR is the IR
interface
enabled in the bios? or wireless (whatever method your using)

The OP specified wireless.

-pk

 

[danisgod]

I don't think I've ever seen this kind of limitation. Most routers I see
are set by default to issue a range of about 50 addresses via DHCP, and
permit a total of around 253.


The OP specified wireless.

-pk

(e-mail address removed) hath wroth:








The router does not "pickup" anything from the cable modem. The modem
is a bridge and is transparent to IP addresses. The modem get it's
information from the CMTS (cable modem terminal system), which will
deliver all kinds of nifty things to the cable modem including an IP
address for the router.

You can also connect to the SB4200 at 192.168.100.1 and check the
status page. Got a connection?

Can Vista connect to the router and look at the status page? If so,
does it have a routeable IP address from your cable ISP? If not,
check the WAN settings in the router. You may also have to "clone"
the MAC address of the workstation in order to authenticate.


The usual problem is that Vista has changed the way DHCP works. See:
<http://support.microsoft.com/kb/928233>
This is only a problem if your Vista machine cannot connect to your
router and see the web based config. I believe there is also a
firmware update on the Motorola web pile to fix this, but I'm too lazy
to check.

When you get that fixed, this may also bite you:
<http://support.microsoft.com/kb/933872>

--
Jeff Liebermann (e-mail address removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

Thanks for your response, Ill keep you up to date on what happens on
my 2nd attempts.

The Cable Internet provider that he is with is Virgin Media.

I have considered a number of things since last night on what the
matter could be

1. Virgin Cable might have it so you can only connect to the internet
via only your MAC address.
2. MAC Cloning might also be an option, yet didnt succesfully work
when I tried lastnight

After that im all out of ideas

 

[Guest]

I have a dlink (forget the specific model just this moment) and I had to
manually set the range it is a newer model router however.