macOS 12.3 removed many "legacy" kexts from the system volume. This meant that hardware that previously worked "out of the box" suddenly stopped working. Multibeast 12.3.0 updated its repository to include the necessary force-load commands and newer versions of kexts like VoodooHDA and RealtekRTL8111 to compensate for these deletions.
Before you proceed with the download and installation, ensure your system meets these requirements: Multibeast 12.3.0 Download
This version is not compatible with macOS Mojave (10.14), Catalina (10.15), Big Sur, Monterey, or later versions. If you are running a newer OS, look for MultiBeast 13.x or 14.x. macOS 12