everton ,
Let's stop here for one min please.
we all want to help here,but it looks like we going around the issue all the time.
so If you made log in to your modem/router,
and you have made the changes to get DHCP,and you have configured your wireless Network right.
I do not see any problem for your machine to get connected with wire or with wireless.
The issue is with the configuration in the modem/router.
You have install all the managers,but come up with nothing here.
so just log in to your modem/router and see if your configuration is made correct to wired and wireless.
then Restart your machine,and see if you gut the Network on with wired - then with wireless.
And please update us on the issue.