Skip button on Logon dialog box of Analysis office is missing

when trying to insert data source on Analysis Office, I could not see the 'Skip' button on the Logon pad "Logon to SAP BusinessObjects BI Platform"  and also there is an error on Web Service URL 'Error while checking availability of SAP BusinessObjects BI Platform system".

Can someone please suggest how to fix the above so I can proceed with inserting the data source at the earliest?

Thanks.