This document describes updating the NIC Binding Order or Interface Metrics to correct binding the Hostname of the server to the Public IP Address.
The information in this document is based on Unified Contact Center Enterprise (UCCE).
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, ensure that you understand the potential impact of any command.
The Windows Server Hostname binds to Private IP instead of Public IP triggering processes to bind to the wrong IP Address.
On Windows Server 2016+, the NIC Binding Order is not used and is replaced by Interface Metric, the Metric for the Public NIC should be lower than the Private NIC indicating it is higher priority as noted in the 12.0 Installation Guide:
The Properties dialog box of the network adapter can be used to manually assign the appropriate Interface Metric value.
In the Advanced TCP/IP Settings dialog box, in the IP Settings tab, uncheck the Automatic metric checkbox and type a low value in the Interface metric: text box. In the example provided, a value of 1 is assigned. A low value indicates a higher priority, as shown in the image;