ICS - unable to connect to intenet with second computer but can get to Router

By matt1234
Dec 22, 2007
  1. Hello everyone,
    Looking for some assistance here. I have two Vista machines, I have connected them to each other via their NIC's. I have a wireless connection to my Linksys router which is connected to the Internet DSL connection.

    The main computer with the wireless works fine and can surf the internet. The second computer (the one I connected to the main one via the NIC cards on the computer) can actually see the Linksys router, meaning it is getting out the wireless connection to that router, but cannot go any further. It cannot see the DSL router ( or anything on the internet.

    I have turned off the firewalls and that doesn't help at all. Any advice or assistance would be greatly appreciated.
  2. matt1234

    matt1234 TS Rookie Topic Starter

    I had read through many forum postings and I did changed my Linksys Router's ip to be, since it sounds like ICS uses (although, when I look at my main computer (the one with both network connections) the IP Address for the NIC card that is connected to the second computer is which is the same as the DSL routher, so, that seems very weird)

    After I rebooted the second computer was able to see the internet for a short time, but then stopped being able to see it.

    Then I reboot both PC's again and it is working now. But, after a while it stops working. Has anyone seen this before. It is very frustrating.
  3. Nodsu

    Nodsu TS Rookie Posts: 5,837   +6

    You are talking about the Linksys router, the DSL router and ICS.. Why on earth do you have such a complicated masochistic setup???

    Maybe explain a bit more what you have and what you want to achieve. Three levels of routing is not something that you should be doing in any sane circumstances.
  4. jobeard

    jobeard TS Ambassador Posts: 9,160   +599

    as you already have a router, FORGET ICS and do it the right way;
    modem---router---all systems (wired and wireless)
    each system will be independent of the other and not require tcp passthru routing (which is what is failing just now )
  5. ravisunny2

    ravisunny2 TS Ambassador Posts: 1,971   +10

    Is an ADSL modem a router ?

    Make : Huwaei SmartAX MT841 (1 USB, 4 lan ports)
  6. mattfrompa

    mattfrompa TS Guru Posts: 490   +16

  7. Nodsu

    Nodsu TS Rookie Posts: 5,837   +6

    If it has several LAN ports, then it is most certainly a router and looking into the manual confirms this.
  8. jobeard

    jobeard TS Ambassador Posts: 9,160   +599

    googling found this with specs like
    One RJ-11 interfaces for ADSL line
    Four 10/100 Base-T RJ-45 ports
    One USB 1.1 interface
    One PCMCIA slot for WLAN 802.11g NIC

    QoS & security guaranteed
    1483B bridged and routed, DHCP server, NAT/NAPT :)
    PPPOE and PPPOA dialing
    PAP/CHAP, IP Filter, Firewall, protocol block​

    the DHCP + NAT gives router support. SPI feature is missing however.
  9. ravisunny2

    ravisunny2 TS Ambassador Posts: 1,971   +10

    Thank you, Nodsu.

    Then I should be able to connect my other PC to the net (via this modem/router).
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