Can't connect to a tabular instance using the Powerbi Gateway

[enders]

Hello,

We have a PowerBI gateway and that one connects happy to our on premise SSAS server with dimensional models.
However we can't connect to the tabular instance that is running on the same server. This is the error we got :

Can not connect: An error occurred during the connection attempt with ssasserver\tabular. Details: Hide details
Activity ID: a8c799d9-7de9-4f12-9362-68ed98c9dfce
Request ID: c585c03f-4d87-e661-48aa-b6b3172c3dc1
URI cluster: https://wabi-north-europe-redirect.analysis.windows.net
Status code: 400
Error code: DMTS_PublishDatasourceToClusterErrorCode
Time: Mon Nov 20 2017 08:48:32 GMT + 0100 (Western Europe (standard time))
Version: 13.0.3154.166

XXXX gateway: Received error service with ID 88541: AdomdException encountered while connecting to the target data source ..

Any ideas ?

Constantijn

[v-ljerr-msft]

Hi @enders,

First, this error could occur for different reasons. And a lot of issues can surface when the gateway version is out of date. It is a good general practice to make sure you are on the latest version. If you haven't updated the gateway for a month, or longer, you may want to consider installing the latest version of the gateway and see if you can reproduce the issue.

Then try following this article to troubleshot this issue. If the issue persists, I would suggest you create a support ticket on Power BI Support page for better assistance. 

Regards