Agent on windows with ipv6 not connecting to checkmk server

CMK version:
Checkmk Enterprise 2.1.0p18

OS version:
HOSTNAME : windows server 2016
Checkmk server : CentOS8

Error message:
No direct error message, host is a dualstack with ipv4/ipv6 Checkmk config in place to favor ipv4 from host. Baked agent installed and when agent was registered with sever for agent update and TLS commuication there was no error returned and machine shows up as waiting for agent update / confirmation on agent status. Despite that no information are displayed in checkmk like cpu, memory or disk. All ports that need to be opened are open.

I have re-installed the agent and registered with agent update and TLS.

Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins)

OMD[checkmk]:~$ cmk --debug -vvn HOSTNAME
Checkmk version 2.1.0p18
Try license usage history update.
Trying to acquire lock on /omd/sites/checkmk/var/check_mk/license_usage/next_run
Got lock on /omd/sites/checkmk/var/check_mk/license_usage/next_run
Trying to acquire lock on /omd/sites/checkmk/var/check_mk/license_usage/history.json
Got lock on /omd/sites/checkmk/var/check_mk/license_usage/history.json
Next run time has not been reached yet. Abort.
Releasing lock on /omd/sites/checkmk/var/check_mk/license_usage/history.json
Released lock on /omd/sites/checkmk/var/check_mk/license_usage/history.json
Releasing lock on /omd/sites/checkmk/var/check_mk/license_usage/next_run
Released lock on /omd/sites/checkmk/var/check_mk/license_usage/next_run
+ FETCHING DATA
  Source: SourceType.HOST/FetcherType.TCP
[cpu_tracking] Start [7f5309b0e280]
[TCPFetcher] Fetch with cache settings: DefaultAgentFileCache(HOSTNAME, base_path=/omd/sites/checkmk/tmp/check_mk/cache, max_age=MaxAge(checking=0, discovery=120, inventory=120), disabled=False, use_outdated=False, simulation=False)
Not using cache (Does not exist)
[TCPFetcher] Execute data source
Connecting via TCP to 10.100.143.22:6556 (30.0s timeout)
Closing TCP connection to 10.100.143.22:6556
[cpu_tracking] Stop [7f5309b0e280 - Snapshot(process=posix.times_result(user=0.0, system=0.0, children_user=0.0, children_system=0.0, elapsed=30.009999999776483))]
  Source: SourceType.HOST/FetcherType.PIGGYBACK
[cpu_tracking] Start [7f5309b0e4f0]
[PiggybackFetcher] Fetch with cache settings: NoCache(HOSTNAME, base_path=/omd/sites/checkmk/tmp/check_mk/data_source_cache/piggyback, max_age=MaxAge(checking=0, discovery=120, inventory=120), disabled=True, use_outdated=False, simulation=False)
Not using cache (Cache usage disabled)
[PiggybackFetcher] Execute data source
Piggyback file '/omd/sites/checkmk/tmp/check_mk/piggyback/HOSTNAME/vcenter.domain.com': Successfully processed from source 'vcenter.domain.com'
No piggyback files for '10.100.143.22'. Skip processing.
Not using cache (Cache usage disabled)
[cpu_tracking] Stop [7f5309b0e4f0 - Snapshot(process=posix.times_result(user=0.0, system=0.0, children_user=0.0, children_system=0.0, elapsed=0.0))]
+ PARSE FETCHER RESULTS
  Source: SourceType.HOST/FetcherType.TCP
  -> Not adding sections: timeout('timed out')
  Source: SourceType.HOST/FetcherType.PIGGYBACK
<<<esx_vsphere_vm:cached(1674223542,90)>>> / Transition NOOPParser -> HostSectionParser
<<<esx_vsphere_objects:cached(1674223542,90):sep(9)>>> / Transition HostSectionParser -> HostSectionParser
<<<labels:sep(0)>>> / Transition HostSectionParser -> HostSectionParser
No persisted sections
  -> Add sections: ['esx_vsphere_objects', 'esx_vsphere_vm', 'labels']
Received no piggyback data
Received no piggyback data
[cpu_tracking] Start [7f530998d430]
value store: synchronizing
Trying to acquire lock on /omd/sites/checkmk/tmp/check_mk/counters/HOSTNAME
Got lock on /omd/sites/checkmk/tmp/check_mk/counters/HOSTNAME
value store: loading from disk
Releasing lock on /omd/sites/checkmk/tmp/check_mk/counters/HOSTNAME
Released lock on /omd/sites/checkmk/tmp/check_mk/counters/HOSTNAME
ESX CPU              demand is 0.818 Ghz, 2 virtual CPUs
ESX Datastores       Stored on SVC-Silver-Mirror-Prod-L30 (3.00 TB/16.0% free)
ESX Heartbeat        Heartbeat status is green
ESX Hostsystem       Running on vmhost.domain.com
ESX Memory           Host: 8.06 GB, Guest: 1.20 GB, Ballooned: 0.00 B, Private: 8.00 GB, Shared: 0.00 B
ESX Name             HOSTNAME
ESX Snapshots        Count: 0
Object count         Virtualmachines: 1
VM HOSTNAME        power state: poweredOn, running on [vmhost.domain.com]
+ EXECUTING INVENTORY PLUGINS
 aruba_wlc_aps: skipped (no data)
 aruba_wlc_aps: skipped (no data)
 check_mk: skipped (no data)
 check_mk: skipped (no data)
 checkmk_agent_plugins: skipped (no data)
 checkmk_agent_plugins: skipped (no data)
 docker_node_info: skipped (no data)
 docker_node_info: skipped (no data)
 fritz: skipped (no data)
 fritz: skipped (no data)
 hp_proliant_da_phydrv: skipped (no data)
 hp_proliant_da_phydrv: skipped (no data)
 hp_proliant_mem: skipped (no data)
 hp_proliant_mem: skipped (no data)
 ibm_mq_channels: skipped (no data)
 ibm_mq_channels: skipped (no data)
 ibm_mq_managers: skipped (no data)
 ibm_mq_managers: skipped (no data)
 ibm_mq_queues: skipped (no data)
 ibm_mq_queues: skipped (no data)
 ipmi_firmware: skipped (no data)
 ipmi_firmware: skipped (no data)
 inv_cisco_vlans: skipped (no data)
 inv_cisco_vlans: skipped (no data)
 inv_esx_vsphere_hostsystem: skipped (no data)
 inv_esx_vsphere_hostsystem: skipped (no data)
 inv_if: skipped (no data)
 inv_if: skipped (no data)
 aix_packages: skipped (no data)
 aix_packages: skipped (no data)
 aix_service_packs: skipped (no data)
 aix_service_packs: skipped (no data)
 inventory_checkmk: skipped (no data)
 inventory_checkmk: skipped (no data)
 checkpoint_vpn_tunnels: skipped (no data)
 checkpoint_vpn_tunnels: skipped (no data)
 dmidecode: skipped (no data)
 dmidecode: skipped (no data)
 docker_container_labels: skipped (no data)
 docker_container_labels: skipped (no data)
 docker_container_network: skipped (no data)
 docker_container_network: skipped (no data)
 docker_node_images: skipped (no data)
 docker_node_images: skipped (no data)
 docker_node_network: skipped (no data)
 docker_node_network: skipped (no data)
 inventory_esx_vsphere_clusters: skipped (no data)
 inventory_esx_vsphere_clusters: skipped (no data)
 inventory_esx_vsphere_virtual_machines: skipped (no data)
 inventory_esx_vsphere_virtual_machines: skipped (no data)
 fortiauthenticator_system: skipped (no data)
 fortiauthenticator_system: skipped (no data)
 fortigate_ha: skipped (no data)
 fortigate_ha: skipped (no data)
 fortimail_system: skipped (no data)
 fortimail_system: skipped (no data)
 fortisandbox_software: skipped (no data)
 fortisandbox_software: skipped (no data)
 fortisandbox_system: skipped (no data)
 fortisandbox_system: skipped (no data)
 k8s_assigned_pods: skipped (no data)
 k8s_assigned_pods: skipped (no data)
 k8s_daemon_pod_containers: skipped (no data)
 k8s_daemon_pod_containers: skipped (no data)
 k8s_endpoint_info: skipped (no data)
 k8s_endpoint_info: skipped (no data)
 k8s_ingress_infos: skipped (no data)
 k8s_ingress_infos: skipped (no data)
 k8s_job_container: skipped (no data)
 k8s_job_container: skipped (no data)
 kube_cluster: skipped (no data)
 kube_cluster: skipped (no data)
 kube_daemonset: skipped (no data)
 kube_daemonset: skipped (no data)
 kube_deployment: skipped (no data)
 kube_deployment: skipped (no data)
 kube_namespace: skipped (no data)
 kube_namespace: skipped (no data)
 kube_node: skipped (no data)
 kube_node: skipped (no data)
 kube_pod: skipped (no data)
 kube_pod: skipped (no data)
 kube_statefulset: skipped (no data)
 kube_statefulset: skipped (no data)
 lnx_block_devices: skipped (no data)
 lnx_block_devices: skipped (no data)
 lnx_ip_r: skipped (no data)
 lnx_ip_r: skipped (no data)
 lnx_packages: skipped (no data)
 lnx_packages: skipped (no data)
 lnx_sysctl: skipped (no data)
 lnx_sysctl: skipped (no data)
 lnx_video: skipped (no data)
 lnx_video: skipped (no data)
 mobileiron_inventory: skipped (no data)
 mobileiron_inventory: skipped (no data)
 mssql_clusters: skipped (no data)
 mssql_clusters: skipped (no data)
 oracle_systemparameter: skipped (no data)
 oracle_systemparameter: skipped (no data)
 snmp_extended_info: skipped (no data)
 snmp_extended_info: skipped (no data)
 solaris_addresses: skipped (no data)
 solaris_addresses: skipped (no data)
 solaris_pkginfo: skipped (no data)
 solaris_pkginfo: skipped (no data)
 solaris_psrinfo: skipped (no data)
 solaris_psrinfo: skipped (no data)
 solaris_cpus: skipped (no data)
 solaris_cpus: skipped (no data)
 solaris_prtpicl: skipped (no data)
 solaris_prtpicl: skipped (no data)
 solaris_routes: skipped (no data)
 solaris_routes: skipped (no data)
 statgrab_net: skipped (no data)
 statgrab_net: skipped (no data)
 win_disks: skipped (no data)
 win_disks: skipped (no data)
 win_exefiles: skipped (no data)
 win_exefiles: skipped (no data)
 win_ip_r: skipped (no data)
 win_ip_r: skipped (no data)
 win_networkadapter: skipped (no data)
 win_networkadapter: skipped (no data)
 win_reg_uninstall: skipped (no data)
 win_reg_uninstall: skipped (no data)
 win_video: skipped (no data)
 win_video: skipped (no data)
 win_wmi_software: skipped (no data)
 win_wmi_software: skipped (no data)
 win_wmi_updates: skipped (no data)
 win_wmi_updates: skipped (no data)
 juniper_info: skipped (no data)
 juniper_info: skipped (no data)
 k8s_nodes: skipped (no data)
 k8s_nodes: skipped (no data)
 k8s_pod_container: skipped (no data)
 k8s_pod_container: skipped (no data)
 k8s_roles: skipped (no data)
 k8s_roles: skipped (no data)
 lnx_if: skipped (no data)
 lnx_if: skipped (no data)
 mem: skipped (no data)
 mem: skipped (no data)
 mem_used: skipped (no data)
 mem_used: skipped (no data)
 mssql_instance: skipped (no data)
 mssql_instance: skipped (no data)
 netapp_api_disk: skipped (no data)
 netapp_api_disk: skipped (no data)
 oracle_dataguard_stats: skipped (no data)
 oracle_dataguard_stats: skipped (no data)
 oracle_instance: skipped (no data)
 oracle_instance: skipped (no data)
 oracle_performance: skipped (no data)
 oracle_performance: skipped (no data)
 oracle_recovery_area: skipped (no data)
 oracle_recovery_area: skipped (no data)
 oracle_tablespaces: skipped (no data)
 oracle_tablespaces: skipped (no data)
 perle_chassis_slots: skipped (no data)
 perle_chassis_slots: skipped (no data)
 perle_psmu: skipped (no data)
 perle_psmu: skipped (no data)
 snmp_info: skipped (no data)
 snmp_info: skipped (no data)
 winperf_if: skipped (no data)
 winperf_if: skipped (no data)
 aix_baselevel: skipped (no data)
 aix_baselevel: skipped (no data)
 aix_lparstat_inventory: skipped (no data)
 aix_lparstat_inventory: skipped (no data)
 allnet_ip_sensoric: skipped (no data)
 allnet_ip_sensoric: skipped (no data)
 citrix_controller: skipped (no data)
 citrix_controller: skipped (no data)
 citrix_state: skipped (no data)
 citrix_state: skipped (no data)
 couchbase_nodes_ports: skipped (no data)
 couchbase_nodes_ports: skipped (no data)
 dell_hw_info: skipped (no data)
 dell_hw_info: skipped (no data)
 docker_container_node_name: skipped (no data)
 docker_container_node_name: skipped (no data)
 esx_systeminfo: skipped (no data)
 esx_systeminfo: skipped (no data)
 fireeye_sys_status: skipped (no data)
 fireeye_sys_status: skipped (no data)
 hp_proliant_systeminfo: skipped (no data)
 hp_proliant_systeminfo: skipped (no data)
 infoblox_osinfo: skipped (no data)
 infoblox_osinfo: skipped (no data)
 infoblox_systeminfo: skipped (no data)
 infoblox_systeminfo: skipped (no data)
 k8s_pod_info: skipped (no data)
 k8s_pod_info: skipped (no data)
 k8s_selector: skipped (no data)
 k8s_selector: skipped (no data)
 k8s_service_info: skipped (no data)
 k8s_service_info: skipped (no data)
 lnx_cpuinfo: skipped (no data)
 lnx_cpuinfo: skipped (no data)
 lnx_distro: skipped (no data)
 lnx_distro: skipped (no data)
 lnx_uname: skipped (no data)
 lnx_uname: skipped (no data)
 lparstat_aix: skipped (no data)
 lparstat_aix: skipped (no data)
 netapp_api_info: skipped (no data)
 netapp_api_info: skipped (no data)
 perle_chassis: skipped (no data)
 perle_chassis: skipped (no data)
 prtconf: skipped (no data)
 prtconf: skipped (no data)
 snmp_os: skipped (no data)
 snmp_os: skipped (no data)
 snmp_quantum_storage_info: skipped (no data)
 snmp_quantum_storage_info: skipped (no data)
 solaris_prtdiag: skipped (no data)
 solaris_prtdiag: skipped (no data)
 solaris_uname: skipped (no data)
 solaris_uname: skipped (no data)
 suseconnect: skipped (no data)
 suseconnect: skipped (no data)
 win_bios: skipped (no data)
 win_bios: skipped (no data)
 win_computersystem: skipped (no data)
 win_computersystem: skipped (no data)
 win_cpuinfo: skipped (no data)
 win_cpuinfo: skipped (no data)
 win_os: skipped (no data)
 win_os: skipped (no data)
 win_system: skipped (no data)
 win_system: skipped (no data)

Piggyback file '/omd/sites/checkmk/tmp/check_mk/piggyback/HOSTNAME/vcenter.domain.com': Successfully processed from source 'vcenter.domain.com'
No piggyback files for '10.100.143.22'. Skip processing.
[cpu_tracking] Stop [7f530998d430 - Snapshot(process=posix.times_result(user=0.19999999999999973, system=0.030000000000000027, children_user=0.0, children_system=0.0, elapsed=0.21999999973922968))]
[agent] timeout('timed out')(!!), [piggyback] Successfully processed from source 'vcenter.domain.com', execution time 30.2 sec | execution_time=30.230 user_time=0.200 system_time=0.030 children_user_time=0.000 children_system_time=0.000 cmk_time_agent=30.010

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