2751633 - BPC NW web logon hangs on "Querying available environments"

• When trying to logon to BPC web, after entering the logon credentials the process hangs at the step "Querying available environments"
• Error in IE F12: Invalid character
• Error in Fiddler trace and ICM trace: HTTP 404 Not found

SAP Business Planning and Consolidation, version for SAP Netweaver (all versions)

BPC logon, logon error, Check if environment is accessible , KBA , EPM-BPC-NW , NetWeaver Version , Problem