...
But if your website is behind a load-balancer and not properly configured, there can be some unintended consequences. If the web server is sending the load-balancer's IP to the SP instead of the client's IP, then the SP session will reset whenever the load balancer's IP changes – e.g. . For example, when there are multiple load-balancers balancer nodes in the pool and the user's HTTP request comes in through a random onenode, then the SP session will reset once every few minutes. From the end-user's perspective, it looks like the session expired early and they have to log in again.
...