Wireless router security changes network configuration

I have a home workgroup network with a desktop pc attached to a wired linksys
router and cable modem. I also have a linksys wireless router (dhcp
disabled) connected to the main router like a hub. I use this wireless
connection occasionally when I use my laptop.
Everything worked fine until I decided to add encryption on the wireless
router. One of my laptops still works but my sony laptop got misconfigured
and no longer finds the DHCP server (main router) and consequently is not
being assigned a “behind the router� IP address. The result is I can’t ping
any WAN or LAN addresses with this laptop.
I had to remove the encryption settings and restore the entire hard drive on
the laptop to get it to work again. I reinstated the encryption settings on
the wireless router and now the same problem exists again. What do I
do???????????

DO NOT BUY SONY

"tuuf" wrote:

> I have a home workgroup network with a desktop pc attached to a wired linksys
> router and cable modem. I also have a linksys wireless router (dhcp
> disabled) connected to the main router like a hub. I use this wireless
> connection occasionally when I use my laptop.
> Everything worked fine until I decided to add encryption on the wireless
> router. One of my laptops still works but my sony laptop got misconfigured
> and no longer finds the DHCP server (main router) and consequently is not
> being assigned a “behind the router� IP address. The result is I can’t ping
> any WAN or LAN addresses with this laptop.
> I had to remove the encryption settings and restore the entire hard drive on
> the laptop to get it to work again. I reinstated the encryption settings on
> the wireless router and now the same problem exists again. What do I
> do???????????
>