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wireless networking problem

Discussion in 'Networking' started by timdami, Jul 12, 2007.

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  1. timdami

    timdami Thread Starter

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    Okay here is my situation:
    I have a DSL modem with two connections, one rj45 and one usb
    I have the usb hooked to one computer and then that computer is hooked via network card to a 24 port switch and the internet connection is shared through a proxy server and works fine. This is using a static ip address 192.168.0.1-12

    I then can hook a separate computer to the back of the dsl modem and it connects fine as well.

    Here is where the problem starts
    I plug the rj45 connector that goes into the back of the dsl modem into the WAN port on the wireless router and when I do that I get no internet connection, but a wireless computer and a computer wired to the wireless router can connect to each other.

    What am I doing wrong?
     
  2. TerryNet

    TerryNet Moderator

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    I am surprised, and you are lucky!, that you can connect computers to both modem ports. Given that you can, when you switch from the computer to router (or another computer) you probably need to power cycle (unplug for 15 seconds) the modem.
     
  3. timdami

    timdami Thread Starter

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    I tried that, but no luck.
    Funny thing is is that the network can be u and running and then I just plug a cable into the other port and then one into any computer set to obtain ip address automatically and the new computer is online in about 15 seconds without powering anything off. But no matter what I do I can not get any computer to connect once I plug the router onto the same spot on the modem. and again like I said the router has ports and i can plug one computer into it and it can see the wirelss computer on the same router and can access it, but neither can access the internet.
    any suggestions?
     
  4. TerryNet

    TerryNet Moderator

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    Can you connect any computer, or just a particular one, into the modem's ethernet port and get internet access?

    Is the router's WAN set for a dynamic connection? What do you see in the WAN (or internet) status when the router is connected to the modem?
     
  5. timdami

    timdami Thread Starter

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    I have plugged in several different laptops and they all connect including Macs and also tried two differenet desktops, one running xp one running 2000 and they both connect
     
  6. timdami

    timdami Thread Starter

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    yes dynamic connection
     
  7. timdami

    timdami Thread Starter

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    oops and I see that it says connected, I see activity on the router lights and information being sent but not recieved by the connected computers
     
  8. TerryNet

    TerryNet Moderator

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    "... information being sent but not recieved by the connected computers"

    Firewalls?

    For one of the PCs connected to the router ...

    Start, Run, CMD, OK to open a command prompt:

    Type the following command:

    IPCONFIG /ALL

    Right click in the command window and choose Select All, then hit Enter.
    Paste the results in a message here.

    If necessary use a text file and removable media to copy the results to a computer with internet access.
     
  9. timdami

    timdami Thread Starter

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    Host Name . . . . . . . . . . . . : tim-0a0g5dmnxrq
    Primary DNS Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Broadcast
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : btl.net

    t adapter Local Area Connection:

    Connection-specific DNS Suffix . : btl.net
    Description . . . . . . . . . . . : Realtek RTL8139(A)-based PCI Fast Et
    Adapter
    Physical Address. . . . . . . . . : 00-02-E3-0E-9E-54
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    IP Address. . . . . . . . . . . . : 192.168.1.4
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 192.168.1.1
    DHCP Server . . . . . . . . . . . : 192.168.1.1
    DNS Servers . . . . . . . . . . . : 200.32.248.1
    200.32.218.132
    Lease Obtained. . . . . . . . . . : Friday, July 13, 2007 12:43:16 PM
    Lease Expires . . . . . . . . . . : Sunday, August 12, 2007 12:43:16 PM
     
  10. TerryNet

    TerryNet Moderator

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    You have what appears to be a good IP configuration from the router. If the first test below fails, you have a firewall (maybe part of an internet security suite) blocking.

    To determine a computer's IP address and router's IP address: open a Command Window and type
    ipconfig /all

    The "Gateway" is the router's IP address.

    Now for some troubleshooting. Following is how to use ping to test for communication with your router, the internet, and the internet with symbolic name.

    1. On the PC open a Command window and type
    ping IProuter (where IProuter is the IP address of the router)

    Do you get Replies, or do you get packets lost?

    IF you got replies,
    2. ping 66.94.234.13 (or any other internet address you know)

    Do you get Replies, or do you get packets lost?

    If you got replies,
    3. ping www.yahoo.com (or any other internet name)

    Do you get Replies, or do you get packets lost?
     
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