Teamviewer Firewall Whitelist //free\\ Jun 2026

Whitelisting by hostname is preferred over IP addresses because TeamViewer uses a dynamic network of servers worldwide that change frequently. Hostname Pattern *.teamviewer.com General application traffic and updates master*.teamviewer.com Connection to TeamViewer master servers router*.teamviewer.com Traffic routing for remote sessions hapi.teamviewer.com Access to TeamViewer WebAPI sso.teamviewer.com Single Sign-On (SSO) services Whitelisting Trusted Partners (In-App)

Whitelisting TeamViewer correctly takes 10 minutes. Dealing with dropped remote sessions takes all week. Get this rule set up once, and your helpdesk will finally run smoothly. teamviewer firewall whitelist

Whitelisting means telling your firewall: "Do not inspect, block, or question traffic coming from TeamViewer’s official servers. Let it pass immediately." Whitelisting by hostname is preferred over IP addresses

A firewall whitelist is a list of IP addresses or applications that are allowed to communicate with your computer through the firewall. By default, firewalls block all incoming and outgoing connections, which can prevent TeamViewer from functioning correctly. By adding TeamViewer to your firewall whitelist, you can ensure that the software can communicate with your computer and provide remote access and control. Get this rule set up once, and your

To implement a TeamViewer firewall whitelist effectively, organizations should follow these best practices: