Cpu of Checkpoint firewall

Hello,

i have an issue with the cpu value of my Check point firewall, it's always 0%, or if i type "top" command, i can see that cpu load is between 10 and 15%.

My checkpoint firewall is installed on Dell physical server.

If i use CPU Utilization(UCD SNMP MIB) it gives me 0 :

Monitor Name CPU Utilization(UCD SNMP MIB)

Protocol SNMP

OID

.1.3.6.1.4.1.2021.11.9.0

Monitor value 0

Units Percentage

If i use CPU Utilization (CLI) i have en error :

1. The device might be down.
2. The username and password provided for this device might be wrong.
3. Telnet/SSH service might be down
4. The connection to Telnet/SSH session might have Timed-out

I don't know why because the credential test is Passed for SNMP and CLI.

My version of OPManager is :

Build Number

: 9200