Possibly an upgrade; but the specific fix I had in mind is not applicable on 64-bit Windows. Depending on the version being used, and based on the message when you use Safari, the other thing could be that the server you are connecting to has NLA enabled. If that is the case, and you can't disable it, an upgrade is needed to support that connection type. What you are seeing on your Mac is expected as only Safari is supported and if it is connecting with Java, as is probable, that does not support NLA.
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