This is probably an issue
concerning uppercase/lowercase characters.
GuiXT translates the given password to uppercase (unless you enclose it within "....").
This was appropriate for earlier SAP systems but later ones use case sensitive passwords.
I suggest you either use a password that consists of uppercase letters and
digits only, or you put it into "...." in the profile. In the case of encrypted password (RfcpasswordEnc): create the
encryption including the "...." and then put the result into the
profile without enclosing the encrypted string within "...".
Please note: In
order to encrypt a password "xxx" including the "..." characters, you need the
MS DOS command
backslash characters the "..." are not included into the encrypted password,
since the MS DOS command interpreter treats "xxx" the same way as xxx.