Latest Troubleshooting topics

Topic	Replies	Views	Activity
Troubleshooting FAQ This is a Wiki topic for troubleshooting Checkmk. Feel free to contribute! Template for troubleshooting posts Here is the post template that you can use to make your issue clearer to everyone. Just edit out the sample p…	1	5009	October 31, 2019
About the Troubleshooting category	3	1777	October 30, 2019
vSphere warn on services ps and systemd_units_service - these do not exist on ESXi	2	12	March 25, 2026
Ping: invalid option -- 'A'	0	7	March 25, 2026
Count, size and age of files - delays windows agent checkmk-enterprise	0	5	March 25, 2026
Cisco Meraki Device Status - How to lower Device Status report times checkmk-v2 , checkmk-v2-4 , checkmk-enterprise , checkmk-appliance	0	7	March 25, 2026
Upgrade 2.3.0p45 -> 2.4.0p24 results in errors on activation checkmk-v2 , checkmk-raw	1	26	March 25, 2026
Issues with graphs and large numbers	9	41	March 24, 2026
Monitoring a NetApp storage system... something is wrong?	5	22	March 24, 2026
No dashboard appears immediately after installation checkmk-raw	1	70	March 24, 2026
Checkmk critical Check_MK Discovery	2	27	March 24, 2026
Acknowledge Checkmk checkmk-raw	1	61	March 23, 2026
Removed interface from VM still shown in CRIT condition	4	37	March 23, 2026
Checkmk version upgrade checkmk-raw , checkmk-v2-1	1	34	March 23, 2026
ModuleNotFoundError: No module named 'cmk.special_agents.utils.agent_common' checkmk-raw	1	24	March 21, 2026
Check Certificate reports warn due to self-signed (allow selfsigned checked) checkmk-v2 , checkmk-raw	10	459	March 20, 2026
Wlc_clients plugin on Cisco Catalyst CW9800H2 checkmk-enterprise	2	28	March 20, 2026
Mk_mysql plugin bug	5	75	March 20, 2026
Checkmk on RHEL 9.7 and/or RHEL 10.1 issues	10	559	March 20, 2026
Best practise for host notification and service notification	21	106	March 20, 2026
The last host state is not correct checkmk-v2-1	0	17	March 20, 2026
Systemd Service Summary: Service 'apt-daily' activating for: 12 hours	0	19	March 19, 2026
STULZ Clima missing units checkmk-v2-1 , checkmk-v2-2	0	17	March 19, 2026
View filter on dashboard checkmk-v2 , checkmk-raw	4	60	March 19, 2026
Transferring: 31 new, 716 changed and 8 vanished files -- Multiple changes are activating	4	66	March 19, 2026
Host groups/service groups have disappeared checkmk-managed , notifications	8	83	March 19, 2026
MSSQL Plugin Secondary Replica Database sizes checkmk-enterprise	20	377	March 18, 2026
Since 2.3, checkmk caches old code from MKPs checkmk-v23 , checkmk-enterprise , checkmk-v2 , checkmk-v2-2	15	147	March 18, 2026
MSSQL services of a Windows MSSQL device are in stale. Can't able to get back to normal checkmk-v2-1 , checkmk-v2 , checkmk-raw , checkmk-enterprise	1	21	March 17, 2026
Oracle Custom SQL queries - execution time (Cache_masage=X) checkmk-enterprise	3	30	March 16, 2026

Troubleshooting FAQ

This is a Wiki topic for troubleshooting Checkmk. Feel free to contribute! Template for troubleshooting posts Here is the post template that you can use to make your issue clearer to everyone. Just edit out the sample p…