#this is latest Linux Teamviewer install file from their website
wget https://download.teamviewer.com/download/linux/teamviewer_amd64.deb
apt install ./teamviewer_amd64.deb

#to run it, you can get to GUI, open terminal, and simply type in:
teamviewer

#if the teamviewer doesnt show a join code and just shows a dash then the following needs to be ran in a terminal line by line.

sudo touch /etc/NetworkManager/conf.d/10-globally-managed-devices.conf
sudo systemctl restart NetworkManager
sudo systemctl stop networkd-dispatcher
sudo systemctl disable networkd-dispatcher
sudo systemctl mask networkd-dispatcher
sudo apt-get purge nplan netplan.io
sudo apt-get install ifupdown

#the networkmanager file will show managed=false
cat /etc/NetworkManager/NetworkManager.conf

main]
plugins=ifupdown,keyfile

[ifupdown]
managed=false

[device]
wifi.scan-rand-mac-address=no

#this file will need to be changed to look like this using VI or Nano
cat /etc/NetworkManager/NetworkManager.conf

main]
plugins=ifupdown,keyfile

[ifupdown]
managed=true

[device]
wifi.scan-rand-mac-address=no

#once file is changed and saved run

sudo service network-manager restart
reboot

#once system comes back up the network will then be able to be managed through the gui which will allow teamviewer to see the network cards and will then present the proper join codes.