Try the DSL modem directly connected to the PC.No D-Link Router(powered off and disconnected). Verify that the PCcould surf/browse/connect to the Internet. Go to Start, Control Panel,Network Connections, right click Local Area Connection, Properties,scroll down to/highlight Internet Protocol (TCP/IP), Properties button.Get the IP Add, Subnet Mask, Default Gateway and DNS assigned to the PC(write this down. This will be your WAN/Internet IP settings). Then Disable DHCP of your modem if it has one. OK, close, save or whatever is applicable.
Disconnect the DSL modem from the PC. Connect D-Link Router to PC (wired/LAN) without the modem connected to the router.Go again to Start, Control Panel, Network Connections, right clickLocal Area Connection, Properties, scroll down to/highlight InternetProtocol(TCP/IP), Properties button. Tick "Use the following IPaddress". Enter this IP Add 192.168.0.10, Subnet Mask255.255.255.0,Default Gateway 192.168.0.1 and the DNS from what youhave written down earlier). This will be your LAN IP settings. OK,close, save or whatever is applicable.
Open a browser and log into the D-Link router (192.168.0.1, using "admin" as a username and no password). Do not run Wireless Network Setup Wizard. In WAN/Internet/Modem setting of router enable/check Static IP Add.Usethe IP numbers previously assigned to PC that you have written down asthe router's WAN/Internet/Modem IP settings. OK, close, save orwhatever is applicable. Reboot router. Connect DSL modem to router.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
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