Issues with NetworkAnalysisUtilities in Portal

DETAILS
Services created successfully on non-hosted server that is accessible to Portal
No errors occurred during run of tools
All services except OD Matrix configured with Portal successfully

ISSUES
A. When click on My Org -> Edit settings -> Prompted for u/pw for NetworkAnalysisUtilities (services are not protected)
B. There is no default travel mode
C. Unable to configure travel modes

1. No attributes and parameters, can't save
2. If I add siteadmin credentials for the service (see A above) there ARE attributes and parameters. Still can't save

D. When try to execute an analysis tool (e.g. Service Area)

1. Error Unable to access requested url for Utility routingUtilities. Invalid token. CreateDriveTimeAreas failed.
2. In browser console: invalid tomen 498, Error 000732 supportingFiles: dataset
DefaultTravelModes.json does not exist or is not supported. (Note - no errors prepping data or creating services)

E. Hosting server logs report - Error: SpatialAnalysisTools (Create Drive Times tool) - job failed unable to access registered URL for utility routingUtilities. invalid token (AO_100149)

NOTES:
I tested NetworkAnalysisUtilities from rest endpoint and did the following:

A. Error @ GetToolInfo - Missing file in \\location\data\router\...\SDs\0\v101\ndsupportingfiles. Note: [0\v101\ndsupportingfiles] don't exist

1. I added 0\v101\ndsupportingfiles folders, copied the file from the following location to it, restarted the service. \\location\...\arcgisserver\directories\arcgissystem\arcgisinput\Routing\NetworkAnalysisUtilities.GPServer\extracted\v101\ndsupportingfiles\DefaultTravelModes.json.
2. Note: DefaultTravelModes.json is also in the following location: \\location\...\arcgisserver\directories\arcgissystem\arcgisinput\Routing\NetworkAnalysisUtilities.GPServer\extracted\cd\ndsupportingfiles

B. Error @ GetTravelModes - The file referenced above aren't - though they're there.

Appreciate anything you can offer.