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WPS simplifies Wi-Fi wireless security settings and network management. 
The advantages of WPS
WPS can automatically configure network name (SSID) WPS and WPA security keys for access points and WPS client devices in the network. When connecting WPS devices, users do not need to understand concepts such as SSID and security key. The user's security key cannot be cracked by outsiders because it is generated randomly. The user does not have to enter a foreseen password segment or a lengthy hexadecimal string. Information and network certificates are securely exchanged over the air through the Extended Authentication Protocol (EAP), which is one of the authentication protocols used by WPA2. WPS supports Windows Vista operating system.
The disadvantages of WPS
WPS does not support "ad hoc" networks where devices do not rely on APs to communicate directly. All Wi-Fi devices on the network must be WPS-certified or compatible with WPS. Otherwise, WPS cannot be used to simplify network security configuration. Because the hexadecimal string in WPS is randomly generated, it is difficult to add a non-WPS client device to the WPS network. WPS is a new authentication technology, so not all vendors support it.
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Easily crack wifi password, use router WPS function
WPS in the router is the new Wi-Fi security protection standard introduced by the Wi-Fi Alliance. The main reason for the introduction of the standard is to solve the long-term drawbacks of wireless network encryption authentication settings. Because the steps are so inconvenient that they simply do not do any encryption security settings, it causes many security issues. It supports two modes: Personal Identification Number (PIN) mode and Button (PBC) mode. WPS settings, Wi-Fi protection settings, you can choose the appropriate mode according to the client's support. With WPS, the AP and the client can automatically make security settings. You can simply press a button or enter a PIN. On some clients or routers, WPS is also called WSC (Wi-Fi Simple Settings).