In order to keep the user access efficiency from being affected by server timeout in WLAN systems
this paper studies the PORTAL certification
PPPoE certification
EAP certification mode and RADIUS certification process.On the basis of testing and analyzing the user access efficiencies in various authentication modes
it optimizes the RADIUS client authentication process
eliminates the occurrence of user connection failures caused by the misjudgment of server status
avoids long time waiting by users and improves user access authentication efficiency.