Salam, thank you for helping me to solve the problem
I did the default of the RRAS server as fallow
right click on the Server name of the RRAS-->Configure and enable.....-->Next-->then select Remote access server-->TCP/IP protocol--> Automatically (IP Address Assignment)--> No, I don't want to set up this server to use RADIUS now-->Finish
I got these two warning messages
1)
Windows was unable to add this computer to the list of valid remote access server in Active Directory. before you can use this computer as a remote access server, the domain administrator must complete this task
2)
To support the relaying of DHCP messages from access client, you must configure the properties of the DHCP Relay Agent with the Ip Address of your DHCP server
The arrow near the server name is green and it seams normal.
I know that all problem is from RRAS setting, please tell me what should I change?
Thanks so much