3041007 - Error "No RFC authorization for function module RFCPING" in SUM step "Input SAP* User Password"

When trying to upgrade a dual stack system by using SUM, face below error at phase "Input SAP* User Password" for java stack.

Had already checked SAP KBA 2670236 and confirmed the password of user SAP* is correct, but still, SUM is not accepting the password.

In INPUT-SAPSTAR-PWD_<xx>.LOG, find below error message:
---------------------------------------------------------------
<Time stamp> [Info  ]: Executing dialog SAPStarPwdDialog for user SAP*.
<Time stamp> [Info  ]: Dialog eliminator jeeSuperAdminPassEliminator does not allow to omit dialog SAPStarPwdDialog
<Time stamp> [Info  ]: Connecting to ABAP server...
<Time stamp> [Info  ]: host: <hostname>
<Time stamp> [Info  ]: instance number: <instance_number>
<Time stamp> [Info  ]: client: <client_number>
<Time stamp> [Info  ]: user: SAP*
<Time stamp> [Error ]: Initialization of destination <hostname><instance_number> failed: No RFC authorization for function module RFCPING.
<Time stamp> [Info  ]: Validatable parameter J2EE/SAPSTAR/PWD is invalid according to validator AbapUserValidator.
<Time stamp> [Info  ]: Dialog eliminator jeeSuperAdminPassEliminator does not allow to omit dialog SAPStarPwdDialog
---------------------------------------------------------------

In transcation ST22, there is following short dump.

Category           Installation Errors
Runtime Errors  RFC_NO_AUTHORITY

No RFC authorization for function module "RFCPING".

The user "SAP*" in the client <client_number> attempted to execute the function module
"RFCPING" from the function group "SYST", but does not have the appropriate
RFC authorization.

SAP Dual stack system (for example: SAP Solution Manager 7.1)

"INPUT-SAPSTAR-PWD", "SAP*", "No RFC authorization for function module RFCPING", "Initialization of destination", "failed", "RFC_NO_AUTHORITY" , KBA , BC-UPG-TLS-TLJ , Upgrade tools for Java , Problem