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WRT54G - can't connect to internet

Discussion in 'Cisco/Linksys Wireless Routers' started by cacwi, Oct 5, 2007.

  1. cacwi

    cacwi LI Guru Member

    i just moved into a new apartment with wirless internet.
    i can connect to the router, the status shows connected with excellent signal strenth.
    but i can't access the internet, see any webpages, messenger p2p
    any suggestions?
  2. danix71

    danix71 LI Guru Member

    You mean the connection between you (your computer) and router ? But what about the WAN connection (status) ?
  3. cacwi

    cacwi LI Guru Member

    the modem is connected to the router if that is what you are asking
  4. danix71

    danix71 LI Guru Member

    Look. And at the bottom of the printsreen you'll see "conected". Is that the same case for u ?

    Attached Files:

    • wan.jpg
      File size:
      32.3 KB
  5. Toxic

    Toxic Administrator Staff Member

    DNS problem perhaps?

    do you have any DNS entry on your PC?

    goto Start, Run, type


    then in the command prompt window type

    ipconfig /all

    is DNS listed as a valid IP address?
  6. cacwi

    cacwi LI Guru Member

    it changes. i press connect and it stays connected for a few minutes, then disconnects and doesn't reconnect automatically
  7. cacwi

    cacwi LI Guru Member

    i did what you said, the DNS has the same format as the IP address but not the same numbers
  8. danix71

    danix71 LI Guru Member

    Then it has to do with:
    1. Connection Internet-modem
    2. Connection modem-router

    NOT with:

    3. Connection router-PC.
  9. cacwi

    cacwi LI Guru Member

    any suggestions how to proceed?
    is it bad wiring? of do i need to contact my ISP?
  10. danix71

    danix71 LI Guru Member

    Hmm...I don't know really...
    If was a bad wiring case, it shouldn't be "connection on-off" so often...Try to connect directly the modem to your PC, to temporary exclude the router from the network.
  11. Toxic

    Toxic Administrator Staff Member

    are you using ADSL? whats the MTU set at on router? ADSL should be 1492 or lower or 1500 for cable.
  12. danix71

    danix71 LI Guru Member

    I suspect a "dinamic IP" cable modem.
  13. cacwi

    cacwi LI Guru Member

    i am able to connect directly to the modem using a cable. and i can connect without problems.

    does this mean that the problem is between the modem and router or with the router itself?
  14. howardp6

    howardp6 Network Guru Member

    Who is your ISP, some Internet Service Providers like Comcast record the MAC address of the Network Interface Card (NIC) of the computer that is connected to the modem. In that case you will have to clone the MAC address of your NIC in the router. This is done to prevent you from using more than one computer at a time. If your ISP does not do this. try this connect everything up, with the power off for a few minutes. Power up the modem, router and computer in that order. What modem do you have? Some modems have a DHCP server built into them.
  15. googlymoogly

    googlymoogly LI Guru Member

    do you know that is even true howard? i highly doubt they do this, I can change between 3 different pc's as the device hard wired to the cable modem and I can get internet on all of them... so basically...

    no they don't.

    what they do look at is the mac address on their side of the cable modem... maybe you are confused.

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