First thanks for the info. Yeaaa for helping us help you 
Second, when you lose the connection, do you lose it on all all the computers? And when it happens, can you still pull up the 192.168.0.1 of the router? If so, go into Status > WAN and tell me what you see. If you can 192 into the router, sounds like a possible T3 on the modem (think connection hipcup) if you can't, sounds like some sort of conflict in the routers settings. Maybe a gaming rule or something. Or come to think of it, QoS between the Wii and 360. Do you notice it happens more when using the two at the same time?
I still can log in to the router when it happens..192.168.0.1

Connection Type : DHCP Client
QoS Engine : Active
Cable Status : Connected
DNS Status : Online
Network Status : Established
Connection Up Time : 0 Day 6 Hour 41 Min 57 Sec
MAC Address : It here but dont want to tell the world..lol
Authentication & Security :
IP Address : 68.***.***.*
Subnet Mask : 255.255.240.0
Default Gateway : 68.***.***.*
Primary DNS Server : 66.***.*.**
Secondary DNS Server : 66.***.*.**
Advanced DNS : Disabled
Thanks for you time!!
