Failed to update data source credentials:

I have a report that with out problem update in desktop, but in online edition it wount accet credentials to one of the tabels.

Alle the tabels are Odata feed from the same NAV. The only differense one this table and the other tabels are that I have made the call with my own M statment so I should not load the entire table.

The last part of the M String are this one:

All the othe tabels, that are working both in desktop and online, are loaded total, and not with ?$select=...........

---------------------------------------------------------
Failed to update data source credentials: Timeout expired. The timeout period elapsed prior to completion of the operation.Hide details

Activity ID:	87509aa1-b84d-41d1-b29b-c46944527abd
Request ID:	eebf65dc-415f-0bd6-bd1c-f4a8246473fd
Status code:	400
Time:	Tue Mar 26 2019 19:51:33 GMT+0100 (Centraleuropæisk normaltid)
Version:	13.0.8885.144
Cluster URI:	https://wabi-europe-north-b-redirect.analysis.windows.net