"Access Denied. Unable to authenticate the user"/opt/vmware/horizon/workspace/logs/horizon.log[vIDMHostname;-;IPAddress;] com.vmware.horizon.service.controller.auth.LoginController - authentication failed and/or no more idp/auth method serving this domainidp.not.found
VMware Identity Manager: 3.3.7
IP address not included in the configured IP Ranges in the vIDM Policy (vIDM UI > Administration Console > Identity & Access Management > Policies > Network Ranges).
This is a network configuration issue and needs to be verified by the network team.
Workaround:
Create new policy allowing "All Ranges".
For more information, see the Access Policy Settings.