When attempting to connect to the URL for the OData service web page, the following error is thrown:
<message lang="en-US">Invalid user ID or password.</message>
This error typically indicates two possible issues:
Additionally, in some cases this issue may also be noticed after a refresh of one environment to another.
Release: All Supported Releases
If the above doesn't help, see additional requirements / steps to configure OData at: Configure OData Access to the Data Warehouse