AuthenticationFailure : null

AuthenticationFailure : null

Hello,
 
The serve monitored by OPManager is Windows 2000 SP4. snmp installed and well configured.
 
No data is displayed on the OPM Dashboard and we receive the following alert each time :
 
AuthenticationFailure : null
 
 
Whats is the solution to that issue ?
 
Thanks for your answer.
 
AEC

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