bssv on horizontal cluster

Hi,

After we finished installing BSSV on Weblogic server with horizontal cluster
on two Machines, and installing HTTP server on the first machine. Now when we
try to test if the load balancer works we try to create more than one
connection using SOAPUI but every time we connect the load balancer direct us
to the first server instance, so we try to stop instance on the first server
and keep only the instance on second Server running and try to connect through
HTTP server port using SOAPUI we have the following error (appear on image) and
HTTP server can't direct us to the second instance on Horizontal cluster.