XBOX Linksys Router UPnP Error

http://www.xbox.com/en-US/live/connect/linksyswrt54g.htm

I am not allowed to disable the UPnP setting on the router because my dad says it opens up a port and leaves security issues. Pretty much to break it down, my dad did it out of spite because he is a prick.

Would I be able to plug the XBOX into my PC instead of the router to avoid this?

Anyone else have this problem?

Ah!
I’ve tried hooking up a xbox through the ethernet port with Wireless connection. Just doesn’t work, well thats what I came to believe. If you could found out how to link those two connections, then it could possibly work, but sounds doubtful.

Good Luck!