Spectrum primary and secondary SpectroSERVERs are not communicating with each other.
No issues with firewalls blocking any of the required ports.
For this particular incident, the short hostname of the primary and secondary SpectroSERVER systems were the same.
For example, the primary is "spectrum.primary.com" and the secondary is "spectrum.secondary.com". Spectrum communication uses the short hostname.
Release : Any
Component : Spectrum Core / SpectroSERVER
Ensure the secondary and primary use unique hostnames.
Please see the "Name Resolution Requirements" and "DX NetOps Spectrum and Multiple Interfaces" section of the documentation for additional information.