cannot parse list of active checks: cannot parse as a valid JSON object

[igalsc]

Hi Guys,

I'm running Zabbix on AWS, my setup is :

Zabbix Server 5.2.2 running on Ubuntu, client is Windows 2019 with Zabbix Agent 5.2.4

My zabbix_agentd.conf on the server is

PidFile=/run/zabbix/zabbix_agentd.pid
LogFile=/var/log/zabbix/zabbix_agentd.log
LogFileSize=10
DebugLevel=3
##### Passive checks related
Server=127.0.0.1,zabbix.rest_of_FQDN.here,10.10.11.145, 10.10.10.66
ListenPort=10051
# StartAgents=3
ServerActive=127.0.0.1,zabbix.zabbix.rest_of_FQDN.here
Hostname=HOST-NAME

The 10.10.11.145 and 10.10.10.66 IPs are the internal LB IPs

My zabbix_agentd.conf on the Windows 2019 is

LogFile=C:\Program Files\Zabbix Agent\zabbix_agentd.log
LogFileSize=10
DebugLevel=3
Server=10.0.2.231,10.0.1.108
ListenPort=10050
ServerActive=zabbix.rest_of_FQDN.here
Hostname=HOST-NAME
Timeout=10

My host is setup in Zabbix UI as HOST-NAME, with

IIS by Zabbix agent active

This is what I get when I run the agent on the Windows

 3008:20210224:125333.184 In refresh_active_checks() host:'zabbix.rest_of_FQDN.here' port:10051
3008:20210224:125333.220 sending [{"request":"active checks","host":"HOST-NAME"}]
3008:20210224:125333.221 before read
3008:20210224:125333.237 got [ZBX_NOTSUPPORTED]
3008:20210224:125333.238 In parse_list_of_checks()
3008:20210224:125333.240 cannot parse list of active checks: cannot parse as a valid JSON object: invalid object format, expected opening character '{' or '[' at: 'ZBX_NOTSUPPORTED'