Method and device for controlling access

The present disclosure relates to a method and a device for controlling access to the Internet. The method includes: determining whether a smart device is able to support a Low Density Parity Check Code (LDPC) coding-decoding scheme, broadcasting information about a Wireless Local Area Network (WLAN) to the smart device through a LDPC coding-decoding scheme if it is determined that the smart device is able to support the LDPC coding-decoding scheme, detecting whether the terminal tries to communicate with a router through a LDPC coding-decoding scheme when accessing a WLAN is requested if the smart device is not able to support the LDPC coding-decoding scheme, in response to detection that the terminal would communicate with a router through a LDPC coding-decoding scheme: establishing connection with the router, and notifying the router to broadcast information about the WLAN through a non-LDPC coding-decoding scheme.