later I found out another solution to make it work for Remmina 0.9.99.1. You can change the security authentication for the VNC server to be VNC Password instead of Unix password and create an admin user credentials so you can use it in the remote connection as the following:
On VNC Server side on Raspberry Pi 3#3
Go to the options on the VNC Server on Raspberry Pi 3 and you should have the sudo credentials when you started VNC server
Change the security authentication to VNC Password as shown below
Finally you need to add a user to use it to connect. In my case I created an administrator user (default username was admin)
On Remmina side on Ubnutu
You will create a new connection with the given IP address of the Raspberry Pi on your local network (you should be able to know it using ifconfig
) and using the admin user credentials created on VNC server as the following:
Please note that It worked with me while encryption was off, as it made some problems mentioned in other posts. I will try to see if it will work with encrypted on or no.