Looks like you need to just reset it all .. try this from the appliances O/S (support - maintenance):
/usr/bin/
ipmitool lan set 3 access on
ipmitool user set name 3 sysadmin
ipmitool channel setaccess 3 3 callin=off ipmi=on link=on privilege=4
ipmitool user set password 3 P@ssw0rd
ipmitool user enable 3
ipmitool bmc reset cold
Then wait a few minutes
If that doesn't do it you may need to do more of a re-set .. try this first and if it doesnt work let me know and i will give you the full reset instcutions .. but i will need to know which version you are running (2.5 or 2.6)