The external Modem / Router that you are trying to connect to usually come with a small Card with the WiFi Details such as WiFi Name / Provider / WiFi Password and some other documentation on connections.
You may be asked for some other details such as WiFi Password or MAC Address or some form of Identifier which is usually supplied with External Modem / Router which you may have to enter manually to connect the two. Besides adding WiFi capability, the main claim to fame for the ESP8266. Slide Wi-Fi On, then available networks will be listed. If it is in the list select it and click Connect. Step 2: Download the ESP8266 Flash Download tool for windows from the official. Click the Windows button -> Settings -> Network & Internet. ( Make sure its WiFi is Enabled or it wont show up in the list ). In this list it should show the External Modem / Router what you are trying to connect to. Unfortunately, just before that happened, I had pressed Function (Fn) & F3, otherwise known as the Wireless Capabilities button. Long story short, my laptops keyboard and mouse pad broke, they became disconnected from the motherboard, or whatever, through events I wish not to explain. It should show a list of Networks Available. Turning on Wireless Capability on Acer Aspire E1-531. Hover your Mouse over it or Right Click on it to see what options you are given. You should see a Network Access Icon in the bottom Right Hand Side of you Task Bar.
I am only speculating as i don`t know what type of Setup ( External Modem / Router you have and if its Wireless capable ).
