Since going wireless I either can connect or cant upload/download. The only firewall I have is Windows, which I disabled but this does not solve the problem. It is telling me it is connecting when I begin a search then it is saying there is a firewall. This has only started since I began using wireless. Can anyone help? It would be greatly appreciated. Thanks.

The problem is obviously your wireless devices since they will have their own internal firewalls. Have a careful look here & check to see if your devices support UPnP or if not, you'll need to manually port forward them: Connection problems? Check here first!