I have a ArcGIS Server (10.1 SP1) in a distributed high-avail configuration using AGS built-in identify store; dual web-adaptor load balanced (non-sticky) setup; we have noted a latency (1-2mins) on a get tokens request when going via SSL (6443). The latency does not exist when calling via port 6080. We have this setup working in other environments where there is no load balancer; i am struggling to find the issue & while the LB would point to be the possible issues, i'm not convinced by this.
Any idea? Has anyone experienced this?