|My best suggestion is for you to check for newer drivers for your wireless network interface and if there are newer ones, apply them to your device.|
If that doesn't fix it, you may need to take your computer in to a reputable shop to have it looked at by a qualified technician. Your network interface may be having hardware issues.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.