2665402 - Cannot log on SM_WORKCENTER - SAP Solution Manager 7.2

You cannot log on t-code SM_WORKCENTER, and the following screen keeps appearing, even though the user and password is right. It seems the user isn't accepted and taken. While the other t-codes, such as SOLMAN_SETUP or LMDB are working normally.



Warning message:
Protocol cannot be switched to HTTPS; HTTPS is not configured/active
No switch to HTTPS occurred, so it is not secure to send a password

SAP Solution Manager 7.2

workcenter, log on, flp, /sap/bc/ui2/flp , KBA , SV-SMG-INS-CFG , Setup and Configuration of the Solution Manager system , BC-MID-ICF , Internet Communication Framework , Problem