New PC not accept network password

As I recall, and it was a few months ago, when I built my 1st Win 7 box. The 1st box asked me if I wanted to setup a Homegroup during the install or first boot. I said OK, lets do it. That box was named Sony. Sony asked me if I wanted to setup a local user or a roaming user. As it was the 1st box there was nowhere to roam at the time, so I setup a local user named Ken with a password.

When I built the 2nd and subsequent boxes, shortly after I had added them to the same WORKGROUP, they asked me if I wanted to join the HOMEGROUP created by Ken on Sony. When I said OK, the box told me to go ask Ken what the password is.

All this might be irrelevent to you, I see that you have a wlan. That means wireless doesn't it? I have a couple wired laptops on the network, however I have not setup wireless for them as of yet. I just use them to stream movies and television to small rooms that don't have room for a desktop.

My only experience with wireless here is for all the phones. The wireless network is setup in the router. I used the ssid AIR_XXX_XXXX, authentication WPA, encription TKIP+AES, then setup a pre-shared Key 403XXXXXXXXXX. Then, to keep the neighbors out I setup MAC filtering. MAC filtering is a list of MAC adresses that are allowed to connect if they know the pre-shared Key. Then you go to each wireless device, connect to a network, type in the pre-shared key, and your in.

I will likely end up with the same problem as you when I setup wireless for my laptops. However I beleive everything should fall into place after setting up the workgroup and homegroup.

Have you looked around in here yet?