Hello, I’ve been seeing a drop in my network devices (with different locations) lately, exactly between 19:00 - 19:10. During these hours, it is not possible to drop this much in any of my networks. When I look at the logs, there is no anomaly or anything unusual, when I check the cron jobs, there is no active cron running at that time at 19:00 (UTC+3). Also server resources are fine & free during these interval.
The 24-hour charts of 3 different locations are as follows;
Location 1
Location 2
Location 3
What could be the probable reason?
The output of ./validate.php
====================================
Component | Version
--------- | -------
LibreNMS | 22.3.0-35-g02b5ef797
DB Schema | 2022_04_08_085504_isis_adjacencies_table_add_index (236)
PHP | 8.1.4
Python | 3.6.9
MySQL | 10.5.15-MariaDB-1:10.5.15+maria~bionic
RRDTool | 1.7.0
SNMP | 5.7.3
====================================
[OK] Composer Version: 2.3.4
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct
Thanks in advance for any suggestion.