Thank you for your reply.
I config the router as instruction. I found the setup of USB adapter can't be saved in computer. Every time I reboot my computer, it needs to type the setup information, such as IP address and router name again.
Another proble is the computer started network mapping first, then it run te USB adapter. In this case, it always gave me error message on local network connection.
But it can connect to Internet.
What is the problem?