Wireless signal drops

Hello,
I have an HP computer and a linksys wireless adapter. The Linksys router sits in the room immediately below my computer. Whenever I am connected my signal strength is excellent and so is the signal on my wife's computer (same room, 10 feet away). My signal will stay connected for 5-10 minutes and then drop. After I get disconnected I have to go into network connections, disable, then enable the connection to get it back for another 5-10 minutes (very irritating). My wife's computer (same wireless adapter) keeps her signal forever and on those very rare occasions when it drops the computer itself reconnects without assistance. I have looked through all the settings in the network connections properties and they are identical. Any ideas?

Thanks