RFC connection to BW fails with CALL_FUNCTION_SIGNON_INCOMPL for long passwords

Hi,

We're connecting with the NW RFC SDK to SAP BW.

We have a BW test user with a long password, "}l@bPyjS$C$L>vj}wY<lQKE{<<nq6BcXDQq[a${V}l@bPyjS$C$L>vj}wY<lQKE{<<nq6BcXDQq[a${V}l@bPyjS$C$L>vj}wY<lQKE{<<nq6BcXDQq[a${V}l@bPyjS$C$L>vj}wY<lQKE{<<nq6BcXDQq[a${V".

When we open a connection, using RfcOpenConnection, we get the error CALL_FUNCTION_SIGNON_INCOMPL. Everything works fine for users with other, shorter passwords.

What could the problem be? Is it just the length of the password? Is it because of special characters?

Is there anything we can do to fix it?

Thank you!