Belkin WirelessG Plus Mimo

I'm pretty certain that you can only have 1 host per computer/per name for a network. So, if you want to change the laptop as host you will have to setup a network under the settings. Create a network password along with the network name for that laptop. (Unidentified Network) is a correct network name. It's just that you probably didn't change it to a specific name that you wanted it to be in the box. after doing this, you should be able to go to the other computer's and try to log onto the network domain that you have created. after that in order to get approval to access the network domain you have to enter the encryption key which is the network password. you have to do this to all non hosted computers. after completion, you should be connected to that specific network.

Now you want you're desktop to be the host. Well, from above do the same steps for the desktop. But, instead of (in example) to lets say your laptops network name is (Home). Well, you would have to make the host name on the desktop to be (Home2). then set the encrption key. Then go to all non hosted computers including the laptop that you made the first network. because this is a new hosted network created by you're desktop and connect to that network and then supplying the encrption key to be able to access the network. and you should be good. Just my 2cents. although this may not work because you may have to have to routers to be able to create multiple networks but, like you mentioned earlier you have a wireless on you other laptop you can use the setup for that wireless to make another network. Hope this helps and good luck ;)