Net Gear Router won't connect through D-Link Ethernet modem! Why?

By sounforgettable ·
I have a D-Link Ethernet Modem and have recently purchased a Netgear wireless router. I am running windows Vista Home premium (which I hate) on a P4 Dual core system. I set the system up as follows: Modem conected to router via it's ethernet and the routers uplink port. The router is then connected to the PC via Ethernet port 1 to the PC's Ethernet port. I have DHCP enabled on Vista and TCPIP settings set to Automatically detect settings. When I try to ping the Internet I get a response from the router but "Host destination Unreachable" from the Internet. I have tried connecting my modem directly into my PC's ethernet port and I get Internet access straight away. As soon as I put the Netgear router into the system I get nothing. I have reset the router a number of times and I have also reset the modem once, The Router gives an IP addy of and the PC I believe the modem is but I'm not at that terminal now and cannot check. I have updated the firmware on the router to the latest that netgear supply. The modem is still as standard so maybe an option to upgrade firmware on that before I swap the router out. I don't know how to go about that though. I spent an hour and a half on the phone to the Help and support centre last night only to discover that they had no idea what the problem was either and eventually told me to swap the router out for a new one. I know they mean well but I find it hard to believe that the router is broken and don't want a wasted journey just to find out that the new router I pick up has exactly the same issues. As you can probably tell I am at the end of my tether and may even take up jogging in the afternoon so please somebody save me from the pain! it hurts! it hurts!

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All Answers

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Change the base network range of the router.

by 1bn0 In reply to Net Gear Router won't con ...

To 192.168.?(2).0

Right now the modem address is in the same range as teh rest of the internal network. So I would expect the router is not sending anything to the WAN port.

Then it should see the modem as a different , upstream network

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I'm just off to give it a go!

by sounforgettable In reply to Change the base network r ...

I use Auto IP settings at the moment so have just relied on what Vista chooses for me, stupid thing to do really! I should know by now that Vista rarely does what it's supposed to do.
I'll go and give that a try
I'll let you know how I get on.

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Bummer! No change!

by sounforgettable In reply to I'm just off to give it a ...

I've just altered the settings so that the Router was with a default gateway of and the PC @ The IP I got from the router was a dyamic IP as this is required by Tiscali the IP was something like 88.111.??.? I forget but it's dynamic so doesn't matter as it will change the next time I connect anyway. Still I cannot access the Internet. I also went and upgraded the Firmware of the router to the latest supplied by D-link but this just agrevated the modem a little and it took me a further 30 minutes to get my Internet connection back again with just the modem connected.
Damn I'm frustrated! I've never known anything be this difficult before! Someone please help. If this is something you've experienced, I'd be happy to hear how you fixed it.

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Just Noticed that the Router is for Cable (DNS)

by sounforgettable In reply to Bummer! No change!

Would it matter if the router I have says it is suitable for Cable (DNS) when I am running from an ADSL Modem and not through Cable ie Cable & Wireless? I'm not sure I thoroughly understand if there is a difference between Cable conections and and the ADSL conection I have. Any pointers?

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To clarify, what model of 'Ethernet Modem'

by robo_dev In reply to Net Gear Router won't con ...

The confusing part of it is that many modems are actually simple NAT routers, and hanging one NAT router off another NAT router does not work well.

If your D-Link was truly a 'modem' your PC would be assigned a real Internet address like 24.x.x.x or something similar...since your PC is getting a 192.x.x.x off this 'modem', it's not a modem, it's a router.

There are two solutions to the problem:

a) Assuming you have DSL, put the D-Link device into 'bridge mode' so that it no longer acts like a router. The Netgear can then treat it like a modem, which it is, effectively, in bridge-mode. the Netgear router would then have to perform the authentication to your DSL provider, using the username/password provided with your provisioning instructions.

b) If the D-link device appears to have some reasonable firewall built in (which it probalby does), then you plug it's LAN port into a LAN port on the Netgear.

You then disable DHCP on the Netgear, and set a static IP address to the LAN interface to be something consistent with your network.

in this case, you've effectively transformed the Netgear from a router to a combination Ethernet Switch and Wireless LAN access point, which is what you need to plug into your d-link router.

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re: To Clarify

by sounforgettable In reply to To clarify, what model of ...

The Modem is a D-Link ADSL2/2+ DSL-320T Ethernet Modem.

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Bingo...there's your problem

by robo_dev In reply to re: To Clarify

That model has two modes:

Bridged Mode
Routed Mode

It's currently in 'routed mode'

You want to get is switched over to 'Bridged Mode'.

Be aware that you will need the original DSL provisioning info to plug into your Netgear Router...some routers can do some sort of 'setup wizard' routine to make the DSL setup process easier.

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by sounforgettable In reply to Bingo...there's your prob ...

Many thanks Robo_dev! I'm sure that would have worked a treat but I have been doing some digging of my own and found that the router I have is a Cable router (DSL) not ADSL for use with a standard telephone line. My set up needs and ADSL router which I just discovered are only sold with inbuilt modems. I just went and swapped it out for one of these so all sorted. I guess the moral of this story is to read about what you need before you just go headlong into a field you have limited knowledge of. So for twits like me : If you have a conection through a standard (BT) type phone line, you will need a modem router like the Netgear DGN 2000, but if you have cable or a set top box conection then you need a standard router!
Thanks for your support!

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