I've been connect to Live via wireless router (D-Link) since April and I have not moved the location of the router or my Xbox since. I also have not acquired any new tech that could be interfering with the frequencies. Now then, I installed the a system update around 11:30ish pm EST (therefore I was connected since I was able to do that) and after the system reboot it froze on the logo screen. I waited for a while then powered down and after powering up I was no longer connected. I have suffered from several failed connection tests. I have followed all of the solution steps provided by the Xbox Support pages as well as called the support number.
It seems that my 360 isn't connecting with the router. Any tips or ideas?