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Lenovo ThinkPad 4291 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. Most USB wireless adapters are simply plug and play, in that you just plug it in the USB port and the OS will handle everything from there. The WiFi in your laptop, if so equipped, uses an adapter to communicate with your wireless router or modem. Finding a WiFi adapter is easy because all you need to know is the current operating system on your laptop.
Major symptoms your wireless internet adapter has to be replaced
- Your WiFi signal has trouble connecting over and over again
- The WiFi adapter driver shows it as not installed
- Your WiFi on your laptop is unable to connect to the internet
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