Hi there.

We have few network nodes monitored via snmp (only 6).
However, after upgrading to version 4.4.1, the newly added nodes show a timeout.
The logs show the following errors:
123092: 20191108: 143138.697 SNMP agent item "system.uptime [sysUpTime]" on host "XXXXXXXXXXXXXXXXXXXX" failed: first network error, wait for 15 seconds
123093: 20191108: 143219.001 SNMP agent item "system.uptime [sysUpTime]" on host "XXXXXXXXXXXXXX" failed: another network error, wait for 15 seconds
123089: 20191108: 143246.525 temporarily disabling SNMP agent checks on host "XXXXXXXXXXXXXXXXXX": host unavailable
In the configuration file, the timeout has already been increased to 30, snmpwalk receives data instantly from the zabbix machine:
zabbix-1 zabbix] $ time snmpwalk -v2c -c XXXXXXXXXXXXXXXX 1.2.3.4 .1.3.6.1.2.1.1.5.0
SNMPv2-MIB :: sysName.0 = STRING: XXXXXXXXXXXXXXXXX

real 0m0.029s
user 0m0.020s
sys 0m0.006s

Queues in administration - queues, no. There is a lot of free random access memory. An elastic is used as the database. The snmp trapper is running, but the file to which it should write the log is empty.
Can you help with something?