Start or stop a service always returns Service Operation Failed

[withanid]

If I try to start or stop any service on the Settings page, I always get this error: “Service operation failed, unable to start or modify service”.

If I try to change the admin password on the same Settings pages, I always get this error: “Error, Error exporting admin account info”.

• I'm using a RN516 with ReadyNASOS 6.9.1
• The started services are SMB, AFP, Rsync, HTTP, HTTPS, Antivirus.
• Rebooting my NAS and/or MacBookPro does not fix it.
• Safari or Firefox browsers show the same results (logged as admin).
• I cannot upgrade ReadyNASOS to the latest version because it requires the Antivirus to be disabled (see my other post).

Any help would be greatly appreciated.

[withanid]

Rebooting my NAS several times over the last past couple of days eventually cleared the issue. I can now start or stop a service.