Load balancing issues - Windows web servers

This can happen because of 2 reasons:

1. You are using cookie persistence, so it is possible that 1 client or a group of clients have opened most of the connections.

    

2. On the pool you are using round-robin load balancing algorithm. It may happen that 1 pool member gets all the long-standing connections and the other gets only the short-lived ones. This will cause pool member 1 to accumulate connections which might skew the balance over time. If this is the case, use "least connections" load-balancing algorithm.

    

Best