Won't access my dsl - D-Link Wireless Gaming Router (DGL-4300)

It should work "out-of-the-box".
Be sure to connect using "straight-through" (not "cross-over") Ethernet cables.
Connect from the 'WAN' port on the router to your DSL-modem (or cable-modem).
Power-off the DSL/Cable modem.
Power-on the DSL/Cable modem.
Power-off the D-Link.
Power-on the D-Link.
Reboot your computer.
You should be good.

Cables connection might loosen up. Check cables that runs from the wall jack going into your modem, make sure all cables are tightly plugged in. Also, check indicator light on your device. If DSL light is RED, OFF, flashing red, flashing green. there might be trouble with your Internet provider. DSL light indicator MUST be always on STEADY GREEN. If you see that the DSL light is not on STEADY GREEN status call your Internet service provider.

To secure your wireless network from unauthorized access,please click on this link and follow my instructions :-http://www.fixya.com/support/r3559128-wireless_router_security

You need a router. The switch won’t give any up addresses. And the modem will only give one address.

open the access points in the internet explorer
in it set the wireless security to WEP and provide the network encrypted password

If your DSL works on PPPOE then you need to setup PPPOE on the 2wire router with the Complete Username and the PAssword for the PPPOW connection, if your DSL works on a Local IP address like 192.168.1.254 or 192.168.1.1 then first check the gateway address of the 2wire Router, if it's in the same IP address range like the DSL Modem like 192.168.1.x the you need to change the Local IP address of the router from 192.168.1.x to 192.168.2.x that should get you up and running with the DSL Modem.

1,there is a reset button
2,press this using any pin with power
3,automatically restart
4,connect your router with pc
5,type 192.168.1.1 on the browser
username:admin
password:admin12 or admin
configure router
enable dhcp

after router you put one wireless access point then you can access your laptop

make sure the dsl modem is in bridge mode. you do this by connecting directly to the modem then accessing modem configuration page. after doing this connect the way everything was before. now go to router admin page, then setup tab at the top, then choose internet, manual setup. in the place where its says my internet connection is select PPPoE. then put in your dsl username, password and etc. save settings. this should fix the problem

You can actually try accessing the interface of your gateway and put it on DMZ mode. That way it will open the ports on your gateway to ensure passage of all data from your gateway to all your computers even when the dsl is on. But make sure tat you have security software installed on all your computer workstations bec. putting your 2WIRE gateway on DMZ mode will expose your connection.