Wifi

I just got a cheap no name wifi card and I installed it in my desktop. However, I get internet, but it turns off and on every second. Because it does not constantly keep turned on, I cannot install windows update, and I can't do anything. When the internet is on, I get speeds of 1 mbps and it takes about 20 seconds to load one webpage. I have a intel i7 processor and 8 gigs of ram and a Samsung 840 pro 256 gb ssd. running windows 7 and have a asus motherboard. my router is a old lynksis but my 2 other Lenovo laptops get good intrnet speeds and are constant. the wifi card is 802.11 b/g/n and the router is 802.11g.

thanks for all the help

I need more information.  What's the cards name, manufacturer, chipset, etc?

this is the card http://www.ebay.com/itm/PCI-300Mbps-300M-802-11b-g-n-Wireless-WiFi-Card-Adapter-for-Desktop-PC-Laptop-/181334768613?pt=US_Internal_Network_Cards&hash=item2a3864fbe5

 my mobo is the z87 chipset idk about the card

If the card has always been like this then it's probably the card.

Try this: http://www.newegg.com/Product/Product.aspx?Item=N82E16833704129

It's the same price, speed, and more reliable. It'll come with a warranty and support in terms of drivers from TP-Link.