Cannot Connect to an OLAP Data Source

Confirm the following:

• You can open the OLAP server from Microsoft Excel. Most OLAP vendors have a plug-in which allows connectivity through Excel.
• You have the correct client software installed on the relevant IBM® Cognos® servers. Any IBM Cognos computer which retrieves data from the OLAP source must have the appropriate client software.
• For MSAS, check that Pivot Table service is installed and the correct service pack is applied.
• You can open the OLAP source through IBM Cognos Series 7.
• You can open either the OLAP vendor samples or the IBM Cognos samples. The problem may be specific to one model, outline, or cube.
• The user making the request from IBM Cognos software is a Domain user with the appropriate access rights.