Only some agent updates stuck in Queue

[ChrisLaplante]

I have Zabbix agent deployed on approximately 100 servers , and all of them are having no issues updating to Zabbix, except one. And for that one, there are only 5 monitors that are not updating.

When I restart the agent, the queue fills with dozens of monitors, but they all eventually clear except these five.

I am new to Zabbix an am struggling to identify the specific these are relating to. No alerts are being generated. Can they be ignored? If not, how can I clear them?

[markfree]

Have you checked the Agent's log from your host?
And, did you check your Server log for messages from your host?

If you try Zabbix Get from your Zabbix Server to your host, can you get data from one of those items?

[vin_c]

Any info on this, did you solve it ? (how ?)

I have 2 hosts with some delayed values from a proxy since 2 days

[vin_c]

On our side it was a misconfiguration/naming between the client name and the inventory hostname for one host and a psk issue for the other :face_palm:

-> Syncing the names and updating the psk fixed it

Side note :
These hosts were "down" for more that 3 months i wonder why we had this alert only now :shrug: