Teamviewer Firewall Here

For enterprises requiring strict IP whitelisting:

However, these default settings may not be sufficient for all environments, especially when using TeamViewer in a corporate or enterprise setting. teamviewer firewall

While Ports 443 and 80 work, they are slower due to additional overhead. For the best lag-free experience, always prioritize Port 5938 in your firewall rules. Configuring Your Firewall: Step-by-Step use (if ASA version 9.5+):

access-list OUTBOUND extended permit tcp any object-group TeamViewer_Servers eq 5938 But since IPs change, use (if ASA version 9.5+): teamviewer firewall