I get a message: "Revocation info for this certificate is not available". What should I do?
During the reactivation process, Backup4all is trying to access the activation server. This message appears when the certificate revocation server cannot be accessed to check the certificate.
In order to avoid that message, please open Internet Explorer ->Internet Options->Security.
Uncheck the Check for publisher's certificate revocation option.
First, try to see if there are other connections from the same computer to the NAS drive. If yes, disconnect it, delete the SMB cache and restart it.
Try again to run the backup from Backup4all.