Can't connect from OMSA to OM on ESXi5.0.0

Hi all

I have installed OM 7.3. on ESXi5.0.0 (build 1311175)

~ # esxcli software vib list | grep -i open
OpenManage              7.3-0000                              Dell      VMwareAccepted    2014-01-22 

From Windows 2008 on which I have installed OMSA I am unable to connect to this ESXi (no firewall between), it always says "Login failed... connection timeout". 

My understanding is that OMSA tries to use port 1311, so I've tried to telnet but no joy. On ESXi I've run equivalent of netstat and don't see anything running/listening on port 1311, only openwsmand on 8889.

~ # esxcli network ip connection list | grep -i listen
tcp         0       0  127.0.0.1:8889   0.0.0.0:0            LISTEN        7789252  openwsmand

I've tried to change to port 1311 in /etc/openwsman/openwsman.conf but this doesn't work

~ # cat /etc/openwsman/openwsman.conf
[server]
port=8889

It gets back to 8889 after running /etc/init.d/wsman restart.

I also tried to telnet to ESXi on port 8889 but it also doesn't work.

So question is: how to connect to remote ESXi from Windows 2008 with OMSA installed?

Do I need to make openwsmand running on 1311?

Thanks

AK