Port with Established connection Plus a Listener (not multi)

All,

I am at a loss here.  I have an inbound thread (not a multi-server) that is listening on port 62670 but when the external client connects to this port I get both an established connection plus a Listener.

/qdx/qdx5.3/integrator/client10> netstat -an | grep 62670

tcp4       0      0  *.62670                *.*                    LISTEN

tcp4    1516      0  192.168.106.5.62670    128.64.0.17.16401      ESTABLISHED

I have not seen this happen before and I need to get it fixed because according to the client they can not send data to this port and get a ACK back.  Here is how I have the comms section setup…

   { PROTOCOL {

       { CA_FILE {} }

       { CA_PATH {} }

       { CERT_FILE {} }

       { CLOSE 0 }

       { CONTROLMSGS 0 }

       { COPYCLIENTIPP 0 }

       { HOST {} }

       { ISMULTI 0 }

       { ISSERVER 1 }

       { IS_SSL 0 }

       { MAXCLIENT 0 }

       { MAXOBQD 0 }

       { MAXPREXLTQD 0 }

       { MODE {} }

       { PASSWORD {} }

       { PDLNAME mlp_tcp.pdl }

       { PDLTYPE tcp-server }

       { PORT 62670 }

       { PRIVATE_KEY {} }

       { RECONNECT 1 }

       { REOPEN 5 }

       { TYPE pdl-tcpip }

   } }

TIA for any and all help.

Rob Lindsey