LibreNMS gaps in graphs

Component | Version
--------- | -------
LibreNMS  | 1.42.01-90-g192ed63
DB Schema | 261
PHP       | 7.0.30-0ubuntu0.16.04.1
MySQL     | 10.0.34-MariaDB-0ubuntu0.16.04.1
RRDTool   | 1.5.5
SNMP      | NET-SNMP 5.7.3

[OK]    Composer Version: 1.7.2
[OK]    Dependencies up-to-date.
[OK]    Database connection successful
[OK]    Database schema correct

Here is a 24 hour graph from network switch.

Are you using SNMPv1? v1 will only graph to ~125Mb, more than that will cause gaps

Oh, realy. I didn`t change it. And it seems that all my ~300 devices with v1 now…How do I change it?

And how it did changed by itself? I didn`t change nothing, and around a week ago I got correct graphs.

Well. I dont know how or why did they switch from v2 to v1… Did you change something in your config.php? When they switch from v2 to v1? (Check your graphs for the starting of the gaps)

If you are sure they all are v1 now and they should be v2, maybe a mass update directly in database is the faster way of doing it.

Only tune fping, nothing more.

In what mysql table I can find and change device snmp version?

Table devices, column snmpver

Thnx for help.

It won’t have just changed from v2c to v1.