For a few days now, all the check about CPU on my servers are at the status “Unknown” after snmp plugin does not return a single value. I tried to reset the snmp conf on server side, check the code in the plugins (pretty hard...) and nothing to do, al lthe status for CPU on Ubuntu servers (18, 20 and 22) are Unknown. I am running the last version of Centreon (22.04.12), running SNMP in version 2c on a private community. It happened after updating all my servers and I can tell the issue started after updating my servers, not the centreon plateform. Any help please !? thanks !!!