Question about Belkin (F5D7231-4) Wireless Router

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Belkin Router: F5D7230-4 V2000 not getting correct IP Address

This is what I wrote to Belkin:

The IP address that is on the internet settings shows "Wan IP" My web page hasn't been viewable for a few weeks and I decided that I would try & hook the cable modem right in to a computer to made sure the Router was not messed up. When I connected the cable modem directly in to the computer the IP address that "ipconfig /all" shows is this "". Then I hooked the router back up and the WAN IPADDRESS still shows the wrong one. When I do "ipconfig /all" with the router connected it shows the "" address. Would this be an indication that the router is not functioning properly? I reset the factory settings and put everything back the way I had them and it still didn't work. Any help would be appreciated. Have you ever heard of this problem before? Thanks for your help.

They wanted me to update my firmware, but the web address they gave me doesn't have a firmware upgrade for V2000. The firmware version I have is 4.05.03. If anyone knows of a compatible firmware upgrade or any suggestion that would be great. Here is the information about the setup I have:

Here is the information about my modem and router.
I have Cox Internet service, dynamic IP I am assuming.
Modem: AMBIT with a model number of U10C018
Router: F5D7230-4 Version 2000 Firmware 4.05.03 Boot Version 2.01.09 Serial BEL1URH5

Thanks for any help

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  • 3 more comments 
  • miketeebo Jul 02, 2008

    I can log in and access the router. I have set it to the factory settings and it still didn't change the IP address.

  • miketeebo Jul 02, 2008

    The IP Addresses that the router assigns is fine. It's the actual IP Address of the router itself, or the IP address of my network. When I go to the status page of the router it shows a WAN IP Address. This IP address should the the IP that the Cable Modem is getting from Cox, at least that I what I think it should be. I have a DNS server that uses my IP Address to access my web page & the address that the router gives I can not connect to. I can't connect just using the IP address either. But the IP address that I get when I just have the Cable Modem plugged in to a computer works great. Does that clarify my problem/question? Thank you for your help.

  • miketeebo Jul 03, 2008

    The computers that are connected to the router do get IP address through the range of and I also believe that it has to be something within the router. I am not sure if it would be in the setting though, since I can put it back to the factory settings and the IP address that it shows is still not the one that the Cable Modem gives out. The firmware update that you found is the one that is already installed on the router. I did reinstall it through just to be sure, but still nothing. Could it be something with the Cable Modem? I wouldn't think so since it gives the right IP address out when it is connected to just a computer. I am about to just say the router is dead and go buy a new one to see if that works. Belkin isn't doing a good job either at helping because every time they write me I have to explain to them that I have already tried to do what they have asked. I have to tell them to look in call history. Anyway, thanks again for looking at my problem I appreciate it.

  • Thomas Van Tress
    Thomas Van Tress May 11, 2010

    One thing to try to recognize is that your computer is getting it's ip address from the router. Somewhere in the settings, router has been changed to only assign ip addresses between a certain range. Usually the range is to, thus allowing you to connect several pc's through one router. You will need to ensure that the same ip address that you had when you connected directly to the modem is the same that is assigned to the router. You can usually find this setting under "status". You may have to re establish the range that I spoke about earlier. I am currently looking into the support page for this router to see if there is a way to reset the default web settings. If all else fails you can always manually configure the ip addresses on your computers.

  • Thomas Van Tress
    Thomas Van Tress May 11, 2010

    Are you able to log in to the router to access the settings. I am not familiar with the Ambit Modem, but I'm guessing there is something amiss with the settings on the router.


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  • 77 Answers

Although I am generally knowledgeable in networking, your issue I think still lies with your Router settings. I will however offer you a site to visit that may help you to set up your router no matter what type of service your ISP is.

It sounds as if the computer that is wired to the router should have an ip address assigned by router somewhere in the range of through The router that you speak of might have the ability to be used as a "bridge" thus throwing off some of the settings. It seems as though you have the ability to have the router set up its own WAN IP. Which is for the wireless aspect of the router. Even with that though the default gateway should still be the address that you type in the browser to access your router's settings. The Belkin web site did offer a firmware update for your particular model as well and I will include that site too.

Good Luck

Posted on Jul 02, 2008

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I received this solution from Belkin. It worked for me & I hope it does for you. Good luck!

Belkin solution:

Please follow the details given below:
1. Please contact your internet service provider to know the connection type details (Is it PPPOA,PPPOE, Dynamic or static)
2. Belkin router F5D8633 ADSL router works only with ADSL broadband connection and does not support Cable broadband connection.
3. Do not use the Setup CD Assistant; reset the unit and configure it manually. Make sure to set the correct VPI/VCI values in the process as the default settings may not be correct.
4. When using PPPoA, always use VcMux encapsulation, when using PPPoE, always use LLC encapsulation. Keep the VPI and VCI as 0/38.
5. Please follow the instructions given below to configure the router manually:
- Connect the phone line direct to the router, or through the filter.
- Connect the computer to one of the LAN ports on the router.
- Switch off the router and power it back after 5 seconds.
- Restore the router to factory defaults by holding down the reset button on the back of the router.
- The power light will flash and then come back ON solid, indicating that the router is being restored to factory defaults.
- The corresponding lights on the router should be lit-up.
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