Hello all, I’ve been using Librenms for about 4 weeks now and have had a reoccurring issue… at random times, I’ll get warnings that all my devices are offline. However, they are not, I can connect to all of them (I have 52 devices on my network that I monitor).
They will remain “offline” for a random time (normally a couple hours), then come back online.
If I restart the Librenms server, they are back online once the server starts back up. If I reset the NIC card (turn it off and on again in the GUI), and manually run ./poller.php -h all, they begin coming back online as it polls. If I try this without resetting the NIC card, the poll fails.
This server was running on a dell R420 with 64gb memory / dual xeon … but had the issue there, so I installed on a HyperV VM in order to try and trouble shoot with known good hardware.
Any help would be appreciated… I thought my internet gateway (I use untangle) was blocking or limiting snmp (port 161) in some way, but I have that protocol bypassing any scanning it might be doing.
I’ve put the output to the validate below. Thanks in advance, Tim
./validate.php output:
root@libreNMS:/opt/librenms# ./validate.php
| Component | Version |
|---|---|
| LibreNMS | 1.54-29-gcec10c1d3 |
| DB Schema | 2019_07_09_150217_update_users_widgets_settings (140) |
| PHP | 7.2.19-0ubuntu0.18.04.1 |
| MySQL | 10.1.40-MariaDB-0ubuntu0.18.04.1 |
| RRDTool | 1.7.0 |
| SNMP | NET-SNMP 5.7.3 |
====================================
[OK] Composer Version: 1.9.0
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct
root@libreNMS:/opt/librenms#
