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Sony VPCF2390X Wifi
You are better off buying a new USB adapter and install it, than to replace any built-in adapter your laptop may have. Buying a wireless adapter is quite easy because all you need to know is the current operating system on your laptop. A lot of newer wireless adapters are plug-n-play, in that you just plug it in the USB port and the OS will handle everything from there. WiFi, or wireless internet, uses a piece of hardware to send and receive signals to and from your wireless router or modem.
Some warnings of an ailing WiFi adapter
- The WiFi disconnects and reconnects during the day
- The wireless adapter driver shows it as not installed
- The WiFi adapter in your Sony laptop cannot see the SSID coming from your router
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