Dataset refresh failure

[pskamble]

Getting this error when trying to refresh dataset connected to dynamics 365:

Failed to update data source credentials: OData: The feed's metadata document appears to be invalid.

Activity ID:	7e8e46b5-72e4-4c70-9f34-875945c0b1df
Request ID:	bbb66da0-91c8-9b6a-ceb6-981cdab2bfba
Status code:	400
Time:	Thu Jun 21 2018 10:12:42 GMT-0500 (Central Daylight Time)
Version:	13.0.5702.156
Cluster URI:	https://wabi-us-north-central-redirect.analysis.windows.net

I am using oauth authentication, multi-factor authentication is disabled.

[GilbertQ]

Hi there

Has it been refreshing before without any errors?