Have you tried the latest drivers (motherboard and network)? From laptop manufacturer or Intel directly? (I hope not Windows Update…NEVER let WU install driver updates…EVER!)
A bit sure of yourself aren’t you? Absolutes don’t always apply.
Yes, I’ve had a few issues with new drivers, mostly video drivers, but for the most part I let Windows do the driver updates until I suspect a problem. I can’t say I’ve run across any driver other than a video that didn’t work as advertised. NEVER say NEVER. :-Q
As for the WiFi problem. Which operating system (XP, Vista, Win7, Win8)?. Is the Wireless adapter a built-in chip, a circuit card, or a USB plug-in?
If it’s a USB then is the USB socket powered? I got one laptop that has two powered USB sockets and 1 unpowered socket.
Some USB devices require more power than a single USB socket can deliver. That’s why there exists “Y” cables so that you can connect one device to two sockets. (the 2nd connector only has the power lines, no data).
How old is the WiFi adapter? I’ve had some Linksys adapters that worked great in WinXP but worked sporadically in Win7 even after I got the supposedly Win7 compatible drivers from Linksys. Gave up and retired them.
Are you running the manufacturer’s configuration panel or are you letting it use the Microsoft Wireless configuration? If I can’t get the manufacturer’s configurator (they’re often pieces of crap) work right I fall back to the Windows Wireless configuration.
What type of wireless router are you connecting with? I’ve had Hell’s own time sometimes dealing with some of the cheap routers like Netgear.