Werk #19714: Fix crash of AKCP checks on undocumented sensor status "0"

Component

Checks & agents

Title

Fix crash of AKCP checks on undocumented sensor status "0"

Date

Jul 20, 2026

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

3.0.0b1 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p11	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p36 Not yet released	Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Previously, the AKCP Dry Contact, Water, Smoke, Humidity, and Temperature services could crash with an error like KeyError '0'.

Some AKCP devices report a sensor status of 0, a value not defined in AKCP's own MIB, both while online and while offline. This has been fixed: the affected service now goes stale for that check instead of crashing.

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