I don't have the CD for the D-Link wireless router Model DSL-2750B

if it's under warranty, you need to contact them first and obtain a Return Materials Authorization (RMA) number. Typically they will give you all shipping info at that time or by email.

Means you have no internet connection. Try a new LAN cable between you router and internet modem. Connect directly to you internet modem make certain it is working. Reboot both devices.

The final solution is a factory reset of your router. You can do a factory reset by logging into the router using you browser. Go to the settings and perform a factory reset

If you forgot the router password, you ill have to do a factory reset by locating a small hold on the back of the router and insert the tip of of paper clip for about 10 seconds while the power is on. The router will be reset to out of box status and then you can set-up form scratch.

There should be a reset button on the unit somewhere that will return it to factory default settings. You can then set up access, level of security and password. Call D-Link if necessary. They have always been very helpful when I've needed them.

Make sure ASUS modelRT-N13U wireless router is turned on then unplug your new router wait about 30 seconds then plug it back in.
It should find your wireless router.
Here is a web site with more trouble shooting advice:
https://www.asus.com/Networking/RTN13U/

Hope this helps

Try a factory reset. login to your router and under setting go to factory reset. Once done you will have to set-up you device from scratch.

Section 1 - Product OverviewHardware OverviewConnectionsUSB Connect a USB 1.1 or 2.0 flash drive to configure the wireless settings using WCN.Reset Pressing the Reset button restores the router to its original factory default settings.LAN Ports (1-4) Connect Ethernet devices such as computers, switches, and hubs.Internet Port The auto MDI/MDIX Internet port is the connection for the Ethernet cable to the cable or DSL modem.Power Receptor Receptor for the supplied power adapter.D-Link DIR-65 User Manual

If you don't know it you can check our list of default router and modem password list here.
If you have changed it and don't remember it you may have to reset your device to factory default using the reset button on most routers.

Hi leftella, First of all, I would like to ask you few questions. 1.Who is your ISP(Internet service provider) like verizon, Bell, Comcast? 2.How many ports you see at the back of the Modem?like WAN, Ethernet, LAN, DSL, Data? 3.How many ports you see at the back of the Router?like Internet,Ethernet,WAN, LAN? 4.What is the make and model of the laptop with which you want to go wireless?
To setup the router you don't need any CD, just need to connect the Modem to router and router to your computer with hard wire Initially and then after setup, you can go wireless.

Hi,
* 1 Unplug your DSL modem and D-Link router. In order for the network to properly recognize its devices, these devices must be attached in a specific order.

* 2 Plug in your DSL modem's power cord. There is usually no power button on a modem. Simply plugging in its electrical cable will turn it on. Give your DSL modem a couple minutes to re-establish its connection to AT&T's network before taking any further action.

* 3 Plug in your D-Link router's power cord. Like the DSL modem, this router will probably not have a power switch; simply plug in the power cable, and it turns on. Let the D-Link router sit for a couple minutes while it establishes its connection to the DSL modem and AT&T's network.

* 4 Physically attach your computer to the router with an Ethernet cable. Even if the router and modem are wireless, a physical connection must be established to properly configure the router. If this is not a wireless network, then your setup procedure is essentially complete.

To access a D-Link router on your network, open an Internet browser and navigate to the 192.168.0.1 address. This will bring you to your D-Link router's interface. The default User Name is "admin" (without the quotes), and there is no password. Enter the User Name and click the "Log In" button. This will bring you to the Setup window. Refer to your D-Link router's documentation for changing the default password (highly recommended) and forwarding ports.

If this is a wireless network, you have a couple further steps. First, change your network's SSID (Service Set Identifier) title, so that you can recognize it when other wireless networks are nearby. Also, choose your wireless encryption and passphrase. WPA2 (Wi-Fi Protected Access 2) is a solid option. Specific instructions depend on your model of D-Link router; so refer to your documentation (which can usually be found at the manufacturer's website if you do not have it on hand).

* 5 Disconnect the Ethernet cable from your computer. Your new wireless network should be visible with your computer's wireless adapter. Windows and OS X will notify you of networks in range when your adapter is active. Connect to the one with your SSID, and enter the passphrase.

Go to My Documents, there you should find an icon for wireless settings. Click on wireless settings, you'll find the security key.

don't go for the cd you configure your self abd it think that your dsl not get the perfect dsl link