Least Connection problem

Hi,

We are doing a LTM demo on customer site for terminal servers. Clients are connected with rdp .

We have tried ratio and obseved. But we can get most equal distribution with least method.

But 2 days later we have seen that distribution of connection numbers is degraded like attached files.

srcrpd persistancy is applied.

Is there a way to correct this distribution or acceptable explanation to customer?

Thanks for your further helps...