This article shares the resolution of the following Kerio Control error that shows in the error logs: IPS Error: hs_compile_multi() failed: Unsupported architecture (expression: -1) (1)
This issue happens is observed in Kerio Control 9.3.3 or later that is installed on CPU hardware released before 2006 (Virtual or Software Appliance).
Kerio Control 9.3.3 and later versions rely on the HyperScan engine in SNORT (internal library for IPS: Intrusion Prevention System) for increased performance. This error occurs when your CPU architecture does not meet the minimum requirements to support this feature.
This error is returned when your system does not support the HyperScan engine feature. At a minimum, the HyperScan engine requires Supplemental Streaming SIMD Extensions 3 (SSSE3).
Please try the solution that adjusts to your environment:
- Upgrade the hardware (CPU) to a more up-to-date architecture/hardware family (CPU issued in 2006 or later).
- Disable 'processor compatibility' option from Virtual Machine settings (if available).
- Downgrade Kerio Control to prior versions (9.3.2 and earlier) by manually uploading a binary file.