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Dell Inspiron 5100 Wifi
You are better off buying a new wireless USB adapter and install it, than to replace any built-in adapter your laptop may have. A lot of newer wireless adapters are plug-n-play, which just means that you only need to put the adapter into an available USB port and the OS will handle everything from there. The WiFi in your laptop, if so equipped, uses a piece of hardware in order to talk to your router. Searching for a new adapter is simple due to the fact that all you need to know beforehand is what OS you are running on your laptop.
Warnings your internal WiFi is not going to last much longer
- The wireless adapter on your laptop cannot see the SSID coming from your router
- The WiFi drops multiple times over and over again
- The laptop wireless driver shows it as not installed
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