I see.
When "Allow administrator access only to IPs in Whitelist" is set to Yes, then the Admin String events (maybe all events) are ignored and not logged if they originate from a whitelisted IP. I suppose the "Auto Blocking" is triggered by logged events.
In the documentation, I had read:
"Since Admin Tools 2.1.7, irrespective of whether this option is enabled, IPs added to the administrator IP whitelist are fully white-listed as far as Admin Tools is concerned. This means that no security measure will be applied against them. Please place only very well trusted IPs in this list! If an attack is launched from this IP, it will not be blocked by Admin Tools!"
I believe the documentation of this, for the most part, seemed completely correct, and yet, as you also correctly point out, the autoblocking should block even a whitelisted IP, unless "Allow administrator access only to IPs in Whitelist" is set to Yes.
If I understand you correctly, this is a feature that seems to be perhaps overlooked in the documentation.
Thank you, Nicholas.