Load balancing error 88: Cannot connect to message server (rc=9)

Hi,

We are facing a problem in the system object.

initially we created a system object with loadbalancing template ,and everything worked fine, but after couple of months we found a error "Load balancing error 88: Cannot connect to message server (rc=9)", so we have created a Dedicated application server object which resolved our issue.

My question is why has this problem occured, and since my client side has lot number of users and we wish to keep the system back to load balancing object.

How can i make my system object work back, what might be the causes?

Thanks

Srivastsa Kondapally