Introducing a load balancer between the agent and the Policy server can cause Commutation failure errors that can be identified in the Agent Log starting with -2 followe by -1 Error as seen below
[14259/1151969248][Sun Feb 07 2016 12:58:21][CSmLowLevelAgent.cpp:546][ERROR][sm-AgentFramework-00520] LLA:SiteMinder Agent Api function failed - 'Sm_AgentApi_IsProtectedEx' returned '-2'.
[14257/1151969248][Sun Feb 07 2016 13:06:58][CSmProtectionManager.cpp:192][ERROR][sm-AgentFramework-00420]HLA: Component reported fatal error: 'Low Level Agent'.
[14257/1151969248][Sun Feb 07 2016 13:06:58][CSmHighLevelAgent.cpp:413][ERROR][sm-AgentFramework-00420] HLA:Component reported fatal error: 'Protection Manager'.
[14257/1151969248][Sun Feb 07 2016 13:07:55][CSmLowLevelAgent.cpp:1378][ERROR][sm-AgentFramework-00520] LLA:SiteMinder Agent Api function failed - 'Sm_AgentApi_LoginEx' returned'-1'.
[14257/1151969248][Sun Feb 07 2016 13:17:10][CSmLowLevelAgent.cpp:1378][ERROR][sm-AgentFramework-00520] LLA:SiteMinder Agent Api function failed - 'Sm_AgentApi_LoginEx' returned'-1'.
[14257/1151969248][Sun Feb 07 2016 13:17:10][CSmAuthenticationManager.cpp:194][ERROR][sm-AgentFramework-00420] HLA: Component reported fatal error: 'Low Level Agent'.
[14257/1151969248][Sun Feb 07 2016 13:17:10][CSmHighLevelAgent.cpp:1244][ERROR][sm-AgentFramework-00420] HLA: Component reported fatal error: 'Authentication Manager'