Error while configuring the biztalk 2013 R2 on NLB

Hi all,

we have four biztalk servers (two of those failover clustered and other two are NLB clustered). We have one sql machine for all the four biztalk servers. WE are planing to have all the 4 servers in one group.  I was able to install and configure the biztalk 2013 r2 on failover cluster and SSO custered as well on failover. 

when i  am  configuring  the biztalk on one of the NLB node , i am joining the existing SSO and group which i was created in failover node. 

And i am facing the problem with an error saying…

“You have specified to join a BizTalk group that is pointing to a different Enterprise Single Sign-On (SSO) Master Secret Server.  You will need to re-configure the local Enterprise Single Sign-On to join to the same SSO system.”

Please help me to solve this issue.

thanks,