In the email send to you the username has RESEARCHLUMC\username as an username construction.
This only works if you login into a windows workstation or if you change your password on the
change password site https://passwd.researchlumc.nl/
For all shark related usernames DO NOT use the RESEARCHLUMC\username construction leave the RESEARCHLUMC\ out,
hence your username for shark and the SSH jumpserver is : username