Solution : https://service.sap.com/sap/support/notes/614161 (SAP Service marketplace login required)
Key words :
terms form login favorites link authentication reason, installing sp5 p3 hf1, form login, internal link, theform login, sp5 patch1, symptom accessing, portal prompts, specail characters, encoded solution
Related Notes :
673279 | Central Note for EP 5.0 SP 5 Patch 3 Hotfixes |