Gateway "cannot be deleted because it is in use on Gateway Group" but it is not

[afan]

Hi,

I'm getting following error when trying to delete a Single Gateway:

The following input errors were detected:

• Gateway X cannot be deleted because it is in use on Gateway Group Y
• Gateway X cannot be deleted because it is in use on Gateway Group Z

I checked GWG Y and Z though and it can be confirmed that these are NOT using this Single Gateway X in any of the tiers.

Any idea on how to properly delete the Single Gateway?
I had already disabled it but I keep on getting "Status failed gateway_alert" messages from Monit.

[Patrick M. Hausen]

Perhaps the error message is not quite accurate. Did you check if the GW in question is referenced in an interface configuration or a firewall rule?