I have uninstalled the agent and then reinstalled it. Additionally, I have taken additional measures such as disabling the firewall and ensuring that the port is open, and even opened the agent port in windows firewall. I have even opened the agent port in the Windows firewall. Despite all these efforts, I have confirmed that the agent is still unable to establish communication with the host. Consequently, the error message “Empty payload from controller at 129.213.202.175:6556” continues to appear. We kindly request your assistance in resolving this matter.
CheckMK version: 2.2
Windows OS version: Windows Server 2016 Std
If “ping” is not working it is for sure the firewall not disabled on this device.
Or you have a problem in between this device and your monitoring server that is blocking the communication.
You can do a connection test on command line like it is described here.
→ 5.5 Monitoring Windows - The new agent for Windows in detail
The ping is working and the firewall is disabled on the server. Configured the incoming rule for the Checkmk agent on Windows firewall and the port 6556 is reachable via the external IP address of the host. But still unable to establish communication with the host. Consequently, the error message “Empty payload from the controller at 129.213.202.175:6556” continues to appear. We kindly request your assistance in resolving this matter.
I want to inform you about an issue that arises immediately after registering the host. Upon registration, we are encountering an error message stating, “Empty payload from controller at 129.213.202.175:6556”. It is worth noting that this error does not occur if we refrain from registering the host.
In light of this challenge, we kindly request your prompt assistance in resolving this matter. We greatly appreciate your attention and support towards resolving this issue.
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CheckMK version: 2.2
Windows OS version: Windows Server 2016 Std
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