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Sony VGN-Z799DGB Wifi
You are better off buying a new USB adapter and install it, than to replace any built-in adapter your laptop may have. Most new Wifi adapters are plug-n-play, which just means that you only need to put the adapter into an available USB port and the system will install the drivers automatically. The WiFi in your laptop, if so equipped, uses an adapter to send and receive signals to and from your router. Buying a USB wireless adapter is quick and painless due to the fact that all you need to know beforehand is the operating system that is installed on your Sony laptop.
Major clues of a deteriorating wireless card
- Your WiFi on your laptop does not connect at all
- Your wireless internet connection goes out randomly all the time
- The wireless adapter driver suddenly shows as uninstalled
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