LAN but no Internet

One of my son's roommates contributed a Linksys WRT54G from her
parent's home to their apartment but they couldn't get it to work.
Trying to help them, I reset the router, configured WEP 128-bit
encryption, and got two of their laptops to access the router just
fine. However, while they could ping the router just fine, they can't
get to the Internet. I've confirmed that the internet is available
directly from the modem.

Any ideas why they can't get out to the open Internet?

TIA,
David

> One of my son's roommates contributed a Linksys WRT54G from her

BTW, it's a version 8 of the Linksys model.

David

Does the Modem have DHCP enabled? I had this problem with both the
modem and the router trying to assign ip addresses.

On Wed, 22 Oct 2008 06:56:55 -0700 (PDT), David Schwartz
<(E-Mail Removed)> wrote:

>
>> One of my son's roommates contributed a Linksys WRT54G from her
>
>BTW, it's a version 8 of the Linksys model.
>
>David

> 1. Can you ping the router? Try:
Yes we can

> 2. Plug one of their computahs directly into the router with a CAT5
> cable. If you can get to the internet, please forget about using WEP
> and switch to WPA-PSK or WPA2-PSK.
We could not reach the internet by using a wired connection to the
router.

> 3. If the router is connected to a DSL modem, it may require a PPPoE
> login and password be configured in the WAN settings.
It's a cable modem.

> 4. If the router is connected to a cable modem, some ISP's require
> that the MAC address is "registered" with them in order to
> "authenticate" the client. Check the ISP's help file on the web.
Will do.

> 5. If the router is connected to an existing router, kindly disclose
> the setup and hardware list so we can untangle this mess. If so, you
> probably want to use the WRT54G as an access point and not a router.
> For instructions, see:
> <http://wireless.navas.us/wiki/Wi-Fi_How_To#Use_a_wireless_router_as_a...>
The router is connected directly to the modem.

> 6. When you connect to the internet, download the latest firmware for
> the WRT54G v8 router. The off the shelf variety never seem to have
> the latest bug fixes.
I've already updated the firmware.

Thanks,
David

David Schwartz wrote:
>> 1. Can you ping the router? Try:
> Yes we can
>
>> 2. Plug one of their computahs directly into the router with a CAT5
>> cable. If you can get to the internet, please forget about using WEP
>> and switch to WPA-PSK or WPA2-PSK.
> We could not reach the internet by using a wired connection to the
> router.
>
>> 3. If the router is connected to a DSL modem, it may require a PPPoE
>> login and password be configured in the WAN settings.
> It's a cable modem.
>
>> 4. If the router is connected to a cable modem, some ISP's require
>> that the MAC address is "registered" with them in order to
>> "authenticate" the client. Check the ISP's help file on the web.
>> Will do.
>
>> 5. If the router is connected to an existing router, kindly disclose
>> the setup and hardware list so we can untangle this mess. If so, you
>> probably want to use the WRT54G as an access point and not a router.
>> For instructions, see:
>> <http://wireless.navas.us/wiki/Wi-Fi_How_To#Use_a_wireless_router_as_a...>
> The router is connected directly to the modem.

If it is like the cable modems we use in the UK, they have to be power
cycled when you connect a different device into them - have you tried this?