Router/Modem Help

By peters_no_1 ·
Hey everyone, I've recently been connected to ADSL2+. I received a modem (Netgear ADSL2+ Modem DM111P) from my ISP Netspace. I then purchased a external ADSL2+ router (TP-LinkTD-8840), which I've been trying to connect to my desktop pc and laptop (both running Windows XP). I currently have the laptop connected to the ADSL via the router via the modem, same for the desktop. I have organized the whole connection this way:

ISP via Phone Line ---> ADSL Splitter/Filter ---> Phone cable to modem ---> Ethernet Cable from Modem to Router Port 1 ---> Ports 2 and 3 to desktop pc and laptop using Ethernet cables.

I am unable to connect the desktop pc and the laptop together with the router and to use the ADSL on both at the same time. When both computers are plugged into the router, only the laptop recieves the connection. After running the Windows IP Configuration on the desktop pc, I receive the following message:

Ethernet adaptor Local Area Connection 4:
Connection-specific DNS suffix . : (blank)
IP Address . . . . . . . . . . . . . . . :
Subnet Mask . . . . . . . . . . . . . :
Default Gateway . . . . . . . . . . . : (blank)

While the laptop (which is connected and works) receives:

Ethernet adaptor Local Area Connection :
Connection-specific DNS suffix . : home
IP Address . . . . . . . . . . . . . . . :
Subnet Mask . . . . . . . . . . . . . :
Default Gateway . . . . . . . . . . . :

When I try accessing the routers information through Internet Explorer by using or, I am are unable to do so because we receive information about the modem. I'm not sure if this step is nessecary. The CD I received from the routers manufacturer prompts me to log in with a IP address/name and password (name and password were on the box), and I think the IP should be While the modem is plugged in I am unable to log in. After disconnecting the modem to test if I could log in (but the modem needs to be connected) I was able to log in, but I have no idea as to what the settings should be.

Any help/tips will be greatly appreciated. Thanks.
(sorry this message is so long)

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All Answers

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I think you're using redundant equipment.

by apotheon In reply to Router/Modem Help

Your setup would probably be fine if you were using a standard DSL "modem" with a standard Ethernet router. It appears, however, that you are using a DSL "modem" with a DSL router -- which acts as another DSL "modem" in addition to acting as a router. You might try removing the ISP-provided Netgear DSL "modem" from the chain, assuming I'm not mistaken about the nature of the DSL router. If I'm right about the hardware you're using, the router should have a socket on it for plugging in the RJ-11 jack for a telephone line directly, rather than running CAT-5 Ethernet cable with an RJ-45 jack from a DSL "modem".

You might also consider just using a different router, and keeping the ISP's Netgear DSL "modem" in place. Most standard (non-DSL-specific) retail routers should work fine for this purpose. D-Link, Linksys, and Netgear are three examples of companies that provide such routers, available all over the place in brick-and-mortar style electronics stores like Best Buy, Circuit City, CompUSA, and so on (or you can buy them online, of course).

I hope that helps.

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I agree

by Mayhem1969 In reply to I think you're using redu ...

with Apotheon. According to the features of that router...

"The TD-8840 uses ADSL (Asymmetric Digital Subscriber Line) technology for Internet connection speeds of up to 455x faster than dial-up, while using a standard phone line. With a built-in 4-port switch, up to four network-ready computers or devices can simultaneously be connected to the TD-8840 for access to the Internet."

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