xbox wont connect to media center

[weedant]

If I miss any kinds of info that you need, tell me and ill add it on.

a couple days ago I was able to watch movies and listen to music through media center on my xbox. then all of a sudden my xbox couldn't find my computer, my computer said that it saw the xbox and that its connected i turned off my firewalls and still nothing. I tried pinging my xbox from my computer, I couldn't. last night i fixed the problem only for last night though the problem was my UPnP Device and SSDP Discovery were disabled. So I enabled them and it worked like a charm last night I wanted to watch something pretty much like 10 minutes ago and it pretty much told me to go f*** myself I am getting so close to destroying my crap if anyone can help me that would be amazing.

ip address - 192.168.1.103

xbox - 192.168.1.100

both of them are connected to a wrt54g linksys router