Issue
Attempting to connect the I/A Series G3 Enterprise Network Server to an ENC and getting a Niagara Station Fault Cause License Exception. Authentication Failed: Exceeded Device limit of 0.
Environment
I/A Series G3, Enterprise Server, ENC-410, ENC-520
Cause
Communications between the I/A Series G3 Enterprise Network Server and ENC-410/520 requires that both are licensed to for peer-to-peer (Niagara Driver) support. The error indicates the ENC is not licensed for peer-to-peer.
Resolution
Use Workbench License Manager to "view" the license in the ENC.
Locate the feature for niagaraDriver and verify the device.limit is none. A device.limit of 0 indicates the ENC requires the addition of the P2P option.
To add the peer-to-peer option ...
ENC-410-1 ... purchase ENC-410-P2P.
ENC-520-2 ... purchase ENC-520-P2P.