This often happens due to a poor connection or low vehicle battery voltage. Ensure you are using a stable power supply.
If you are using a K-TAG 7.020 clone , you should run K-Suite 2.23 . If you are using a KESS V2 clone , many users prefer K-Suite 2.47 for better protocol coverage, though 2.23 works for basic OBD functions.
As a cloned software, K-Suite 2.23 usually requires all internet connections and anti-virus scanners (including Windows Defender) to be disabled to prevent the software from being "locked".
Because version 2.23 is a legacy release, it is rarely found on official manufacturer sites, which now push users toward the latest Alientech Suite. Common sources include: Official Alientech: Alientech Download Page
K-Suite 2.23 is the interface used to read and write Engine Control Unit (ECU) data.