Current version: 11.0 on M1, trying to upgrade using system pref, getting and error that it cannot connect to the internet. Tried using Terminal and got this error:  softwareupdate -i -a --force Software Update Tool Finding available software Downloading macOS Big Sur 11.4 Password:  Downloading: 100.00% Failed to download & prepare update: Error Domain=SUMacControllerError Code=7722 "[SUMacControllerErrorPreflightPrerequisiteCheckFailed=7722] Failed to perform PreflightPrerequisite operation: com.apple.BuildInfo.preflight.error(Preflight):BIPreflightErrorDowngrade(21) | The volume cannot be downgraded.: [com.apple.BuildInfo.preflight.error(Preflight):BIPreflightErrorDowngrade(21)]" UserInfo={NSUnderlyingError=0x122b05ad0 {Error Domain=com.apple.BuildInfo.preflight.error Code=21 "The volume cannot be downgraded." UserInfo={NSLocalizedFailureReason=The volume cannot be downgraded., NSLocalizedDescription=The volume cannot be downgraded.}}, SUMacControllerErrorIndicationsMask=0, NSDebugDescription=[SUMacControllerErrorPreflightPrerequisiteCheckFailed=7722] Failed to perform PreflightPrerequisite operation: com.apple.BuildInfo.preflight.error(Preflight):BIPreflightErrorDowngrade(21) | The volume cannot be downgraded.: [com.apple.BuildInfo.preflight.error(Preflight):BIPreflightErrorDowngrade(21)], NSLocalizedDescription=Current device configuration and target is invalid for install in the current state. Please try again.}