Connecting Wirless Router to DSL Modem not working

I have a DLink N300 wireless router.  I used the wizard to connect it.  I noticed ruing the connection it said I already had a router but I went ahead and installed it.  I am not sure but maybe the DSL modem has a router in it also.  I took the internet connection out of the modem and put that in the router and then connected them together with the blue cord they provide.  That was the instructions.  Then the internet on the PC stops working so I put the internet cable back in the DSL modem and it worked again.  The blue cord is the only connection between the two now.  I can see the wireless network on my laptop and it allows me to enter the password information and then after it check the password it says it can't find the wireless network. I have tried swapping the cords differently and every time the PC connected to the DSL internet stops working.  I need to be able to use both.
kdschoolAsked:
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JohnConnect With a Mentor Business Consultant (Owner)Commented:
This is mildy complicated.

First, if your ISP gave you a DSL modem with a router in it (normal), they should have supplied it in a mode that bridges across their router to your router. That is, they ignore their own router. You may wish to ask your ISP to reset the modem.

Second, if you wish to set up the modem with the internet settings that you would normally put in your own router, then you need to connect the wireless router differently.

To connect it differently, hook up a LAN connection of the wireless router to a LAN connection of the modem. Go to the setup page of the wireless router, turn OFF DHCP, then set the IP address to a fixed address on your modem (nominally 192.168.1.3 or something like that). This assumes your modem base internal IP is 192.168.1.1 .

That should allow you to use your wireless router with the DSL modem the way you set it up.

I really prefer the first method, but you may need ISP assistance to set it up.

... Thinkpads_User
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ElrondCTCommented:
What's the make and model of the DSL modem? That could help us determine whether it has a router, and how best to connect it to your wireless router. What was the "internet connection" that you moved between the DSL modem and the router?

With a DSL modem and a separate router, normally the connections work like this:

Phone jack --- telephone wire (2 or 4 wires in the jack) --- DSL modem --- computer cable (8 wires in the jack) --- router (plugged into the WAN port)
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kdschoolAuthor Commented:
I don't have the name of it with me but will get that.  It is a newer model however as I had to replace it with the provider within last year. I did not remove the phone line.  There is a black cable that goes from the PC to the modem and that is the one I took out of the cable modem and put in the wireless modem.  should I have moved the phone line?
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JohnBusiness Consultant (Owner)Commented:
The phone line should be obvious on the DSL modem so it should be in the same place.

... Thinkpads_User
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ElrondCTConnect With a Mentor Commented:
No, the phone line stays where it is at all times. The cable between your PC and the modem is the correct one to use for the router. So did you mean that after making that connection, you used a blue computer cable (same 8-wire jack as the black one now connecting the modem and the router) between the router and the PC? That should be correct, as long as you put the different cables in the correct ports. (The cable from the modem goes in a port that's nomally labeled WAN, while the cable going to the PC would go in a port that probably has a number from 1 to 4.)

I don't see "N300" as a model number on DLink's web site. Are you in the U.S., or another country? Are you sure that's the correct model number?
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kdschoolAuthor Commented:
I bought it from best buy here is the link.  I did not move the phone cable.  I did put the blue cable in slot one of the numbered slots.  I will have to check on label of WAN did not see that label on modem. There is a label on the router that say Intenet.

      D-Link-Wireless-N Router-DIR-615


http://www.bestbuy.com/site/olspage.jsp?_dyncharset=ISO-8859-1&_dynSessConf=220666707424248000&id=pcat17071&type=page&st=SKU%3A+8305568&sc=Global&cp=1&nrp=15&sp=&qp=&list=n&iht=y&usc=All+Categories&ks=960 
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JohnBusiness Consultant (Owner)Commented:
Based on your input, I suggest you contact your ISP, reset the DSL modem to factory specs, and then hook up your router to set it up. This is a normal way for people to set up their internet. .... Thinkpads_User
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ElrondCTCommented:
"Internet" is the same as "WAN"--it's probably a less confusing (less techie) way to label it. So that's the correct port to plug the cable in to that's going to the DSL modem.

Assuming there's only one LAN (computer cable) port on the DSL modem (along with the smaller port for the phone line), doing a factory reset of both the DSL modem and the DLink router, then following the instructions you have for each to install, would probably be the best way to go. DLink offers phone support if you're having difficulty getting a router working; you may find it useful to be able to talk through the installation process with someone as you do it.
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kdschoolAuthor Commented:
Combination of both of these and it's working.
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JohnBusiness Consultant (Owner)Commented:
Thank you. I was very pleased to help out and good luck going forward. ... Thinkpads_User
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