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Lenovo ThinkPad 720C Wifi
It is cheaper and easier to purchase a new USB adapter and install it, than it is to replace any type of OEM adapter you might have. 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 Lenovo ThinkPad 720C. Most new Wifi adapters are simply plug and 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 in order to talk to your home router.
Warnings of a defective wireless internet adapter
- The laptop wireless driver shows it as not installed
- The WiFi has trouble connecting over and over again
- The wireless adapter on your laptop does not connect at all
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