[CentOS] vinagre from Ubuntu to CentOS 7.9

Wed Aug 4 19:44:44 UTC 2021
Jerry Geis <jerry.geis at gmail.com>

I am trying to use vinagre (vncviewer type program) from Ubuntu 20.04 going
to CentOS 7.9.  I get prompted for the password. I enter it - then it says
Authentication failed.

I can connect with this program to other windows and Ubuntu machines no
problem.  Just having issue with CentOS.  I can use vncviewer from CentOS
to centOS.

What's up ?