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I recently bought a D-Link D2750U Wi-Fi ADSL modem/router, for my ADSL Internet connection.

But I have now changed my ISP, to one that provides Internet via cable (not telephone line). The ISP guy provides a cable modem (old modem) along with it.

I have connected my PC this way: Cable modem → Router → PC. I am able to access the Internet from my PC, but I am not able to get Wi-Fi working on the router. Please help in configuring the router to get Wi-Fi working. And I am logging onto the Internet through a dial-up connection. I did check the model details and it has WLAN enabled.

Output of ipconfig:

Windows IP Configuration

   Host Name . . . . . . . . . . . . : Narain-PC
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Mixed
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No

PPP adapter Yashtel:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Yashtel
   Physical Address. . . . . . . . . :
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 172.200.114.14(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.255
   Default Gateway . . . . . . . . . : 0.0.0.0
   DNS Servers . . . . . . . . . . . : 8.8.8.8
                                       8.8.4.4
   NetBIOS over Tcpip. . . . . . . . : Disabled

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
   Physical Address. . . . . . . . . : C8-60-00-C7-FB-4E
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.1.2(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 0.0.0.0
                                       192.168.1.1
   DNS Servers . . . . . . . . . . . : 8.8.8.8
                                       8.8.4.4
   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{512639CF-5EE2-4F6A-BA85-8002D82309C6}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Teredo Tunneling Pseudo-Interface:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fb:248b:9d3:5337:8df1(Preferred)
   Link-local IPv6 Address . . . . . : fe80::248b:9d3:5337:8df1%12(Preferred)
   Default Gateway . . . . . . . . . :
   NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{A64B7863-7938-4800-8C04-538AFD984077}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter 6TO4 Adapter:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft 6to4 Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2002:acc8:720e::acc8:720e(Preferred)
   Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301
   DNS Servers . . . . . . . . . . . : 8.8.8.8
                                       8.8.4.4
   NetBIOS over Tcpip. . . . . . . . : Disabled
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Acording to the [manual)ftp://ftp.dlink.ru/pub/ADSL/DSL-2750U/Description/DSL-2750U_User%20Manual_EN.pdf) - page 41 and 63, you can assign one LAN port to work as WAN connection.

Then, you just connect cable from modem to this assigned port and set the settings as your internet service provider said so (usually, in the IP settings you set dynamic IP address).

It is also useful to enable NAT service - that way you can use multiple devices in network under one WAN IP address.

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  • I tried this: 1) Connected a LAN cable from cable modem to wifi modem and from wifi modem to PC 2) Thankfully, i am able use internet on my PC. But i cant seem to get wifi working. Also, when i hit 192.168.1.1, its not displaying my dlink modem page. Please help
    – user292033
    Jan 21 '14 at 17:11
  • Can you open Command prompt (win8 pcsupport.about.com/od/windows-8/a/command-prompt-windows-8.htm Win7 - just click on start and write cmd then enter) and provide a output of ipconfig /all command ?
    – phandox
    Jan 21 '14 at 18:24
  • OT: Next time, for long output, you can use pastebin.com So, can you ping 192.168.1.1 ? What is the output? Again, do it in command prompt. What happened when you enter 192.168.1.1 into browser? Are you directly connected to router? Router <-> PC
    – phandox
    Jan 21 '14 at 20:29
  • ok, thanks. When i ping 192.168.1.1, i am getting a "request timed out". And when i hit 192.168.1.1, it tries to connect for a long time and displays "couldnt connect message". Yes, I am directly connected to the router. Modem->Router->PC
    – user292033
    Jan 22 '14 at 2:36
  • 2
    ugh, please edit your question and add the details, don't cram it into comments
    – Sathyajith Bhat
    Jan 22 '14 at 10:16

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