Xbox 360 extender will not connect. Xbox is in network.... HELP!!

Sorry if something has been posted already like this; I did a quick search and couldn't find anything to solve my particular problems.

[COLOR=#3485bd !important][COLOR=#3485bd !important]My [COLOR=#3485bd !important]router[/COLOR][/COLOR][/COLOR] is a Belkin Wireless N router. My PC is connected wirelessly to the network. The Xbox is connected via ethernet. I have Windows Firewall completely off and no other firewall installed. In the network map, I can see the Xbox 360.

I can see my Xbox and it can see my PC. But they will not link together completely.
I can use get it to work if I have my computer wired to the router. The only problem is trying to go wireless.

I go through the setup to get to add extender and get the 8 digit code. I put it in and it goes to the "configuring computer settings" and then times out saying "cannot setup extender". When I go to the online help section it only tells me to enable UPnP setting which is already enabled.

Please help me!!!!

did you give it access to the homegroup? do you have a password on the homegroup?

Yes I have already done that. And there is no password enabled.

Stanberry said:

Yes I have already done that. And there is no password enabled.

in homegroup options did you allow streaming? and do you have your files like music movies what ever you feel streaming on the xbox in the shared folders for your homegroup?

Streaming is allowed and all types of files are allowed. In "choose media streaming options" I have Xbox 360 allowed with full access.

I can access Xbox Live through my Xbox. I can access my Xbox with my laptop if I am connected wired to the router. My Xbox is directly wired to my router also. I have enabled the firewall with all the recommended settings and I have enable UPnP on my router settings also.