I have created a volume on my san, and I am using iscsi initiator on a Windows 2008 R2 server to connect to this volume. When I enter the ip address in the discover portal, I get the error authorization failure.

Have you setup CHAP authenication on the LUN by mistake?David Hood www.consilium-uk.com

Hi, Please check the following link to see whether you can resolve the issue. iSCSI Authorization failure http://www.readynas.com/forum/viewtopic.php?f=126&t=52485 Important Note: This response contains a reference to a third party World Wide Web site. Microsoft is providing this information as a convenience to you. Microsoft does not control these sites and has not tested any software or information found on these sites; therefore, Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. There are inherent dangers in the use of any software found on the Internet, and Microsoft cautions you to make sure that you completely understand the risk before retrieving any software from the Internet. Best Regards, Vincent Hu