Network UPS Tools (NUT) Help

[Intel-Inside]

Salve a tutti,
Ho acquistato un APC BR550GI e l'ho collegato al Muletto (localhost), ma vorrei collegarci anche un altro PC (192.168.1.205) usando per l'appunto NUT in versione Windows ma non riesco a configurarlo a dovere.

Ho googlato un sacco ma niente da fare non riesco a collegarmi all'UPS mediante NUT... vi posto i miei file di configurazione, se potete aiutarmi a capire dove sbaglio.

nut.conf

MODE=standalone

ups.conf

[ups]
driver = usbhid-ups
port = auto
desc = "APC-UPS"

upsd.conf

LISTEN localhost
LISTEN ::1 3493
LISTEN 192.168.1.205 3493
MAXAGE 15
MAXCONN 1024

upsd.users

[admin]
	password = 123456
	allowfrom = ALL
        actions = SET FSD
        instcmds = ALL
	upsmon master

[user]
    password = 123456
    allowfrom = ALL
    upsmon slave

upsmon.conf

MONITOR ups@localhost 1 admin 123456 master

---

Prompt di upsdrvctl.exe start

C:\Program Files\NUT\bin>upsdrvctl.exe start
Network UPS Tools - UPS driver controller Windows-v2.6.5-5-7-g72f380c
Network UPS Tools - Generic HID driver 0.38 (Windows-v2.6.5-5-7-g72f380c)
USB communication driver 0.32
Using subdriver: APC HID 0.95

Prompt di upsd.exe

C:\Program Files\NUT\bin>upsd
Network UPS Tools upsd Windows-v2.6.5-5-7-g72f380c
not listening on 192.168.1.205 port 3493
listening on ::1 port 3493
listening on localhost port 3493
no listening interface available

Prompt di upsc.exe ups@localhost

C:\Program Files\NUT\bin>upsc ups@localhost
Error: Connection failure: Unknown error

NUT l'ho installato con il pacchetto msi windows senza problemi e i drivers usb si installano correttamente e sembrano individuare l'ups collegato in USB.

C:\Program Files\NUT\bin>wdi-simple.exe
NUT UPS driver installer.
-------------------------

Searching for known UPS...
Found UPS : vendor ID = 51D - Product ID = 2
Extracting driver files...
  Success
  USB\VID_051D&PID_0002&REV_0090: Installing driver
Success
You should now unplug and re-plug your device to finish driver's installation.
Hit enter when it's done.

Non so piu' dove sbattere la testa, qualcuno può aiutarmi?