Hi. My name is***** you for your question and the opportunity to assist.
Have you taken that laptop and connected to a different wireless network
(Starbucks, Home Depot, Wal-Mart, a friend or neighbor)
to see how it behaves? I've seen situations where someone has multiple wireless
devices that connect fine with the exception of one that gives a problem but when connected
to a different wireless router it works fine. In that case it was a hardware incompatibility.
If you use a USB wireless adapter you shouldn't have any problem as it will have it's own wireless controller.