Can't see to get Real VNC on Debian 11 Bullseye to work?

Can't see to get Real VNC on Debian 11 Bullseye to work?  Installed the package via the following steps:

# curl -L -o VNC.deb https://downloads.realvnc.com/download/file/vnc.files/VNC-Server-Latest-Linux-x64.deb
# apt install -y ./VNC.deb

I get the following warnings, but they seem informational?

W: Repository is broken: realvnc-vnc-server:amd64 (= 6.11.0.47988) has no Size information
N: Download is performed unsandboxed as root as file '/root/VNC.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)

I started VNC on the Debian 11 system in service mode:

# systemctl start vncserver-x11-serviced.service
# systemctl status vncserver-x11-serviced.service
● vncserver-x11-serviced.service - VNC Server in Service Mode daemon
     Loaded: loaded (/lib/systemd/system/vncserver-x11-serviced.service; enabled; vendor preset: enabled)
     Active: active (running) since Mon 2022-12-05 20:29:20 PST; 10min ago
   Main PID: 4281 (vncserver-x11-s)
      Tasks: 2 (limit: 18737)
     Memory: 2.2M
        CPU: 34ms
     CGroup: /system.slice/vncserver-x11-serviced.service
             ├─4281 /usr/bin/vncserver-x11-serviced -fg
             └─4283 /usr/bin/vncserver-x11-core -service

Dec 05 20:29:20 crazy systemd[1]: Started VNC Server in Service Mode daemon.
Dec 05 20:29:20 crazy vncserver-x11[4283]: ServerManager: Server started

But I cannot connect to Debian 11 system, I just get a timeout.  I know the viewer in Windows is working, I can connect to my Raspberry Pi just fine.  It is only the Debian 11 system that is at issue.

I have done this before with other VNC servers, so I check the service/port networking:

# netstat -tulp | grep 5999
tcp        0      0 0.0.0.0:5999            0.0.0.0:*               LISTEN      3434/vncserver-virt
tcp6       0      0 [::]:5999               [::]:*                  LISTEN      3434/vncserver-virt
udp        0      0 0.0.0.0:5999            0.0.0.0:*                           3434/vncserver-virt
udp6       0      0 [::]:5999               [::]:*                              3434/vncserver-virt

Any other suggestions?