Allowing users access to SQL Server 2014 analysis server cubes

Question

I am using SQL Server 2014 analysis server and have created a number of cubes. These all function as expected however it seems that only windows users who are in an
administrator group can get access. All other users are denied access with the very vague error of 'Communication error'.
If I then add that user to our administrators group within the windows domain they instantly get access. I have defined roles for each cube (within analysis services) and then added both individuals (i.e. their windows domain user id) as well as their windows
domain groups to these roles but they still cannot get access - just get the error 'Communication error'.
I am using ADOMD on the client side which I know works because users in the administrators group can see the data. I have granted cube permissions using Management studio however no matter what front end we use (either our own App or EXCEL) if the user in
question is NOT in the administrator group in the domain they cannot get access to any of the cubes.
Any help anyone can provide would be much appreciated. 

Answer 1

Hamishr,
According to your description, you want to grant the access permission to cube for the users who are not belong to Administrator group, right?
By default, no one except a Server Administrator or Database Administrator has permission to query cubes in a database. Cube access by a non-administrator requires membership in a role created for the database containing the cube. Membership is supported
for Windows user or group accounts, defined in either Active Directory or on the local computer. So in your scenario, please ensure the steps to grant permission are correct, you can refer to the link below check it.
http://msdn.microsoft.com/en-in/library/ms174799.aspx
Regards,
Charlie Liao
TechNet Community Support