Can TeamViewer be used within a local network (LAN) only?
You can establish remote control sessions directly within your local area network (LAN) by using IP addresses or computer host names. By default this feature is deactivated because some software firewalls may not allow it.
If you would like to receive a connection from another computer over your LAN, you need to enable this feature on your computer first:
1. Go into the TeamViewer Options--> General --> Incoming LAN Connections --> change to either Accept or Accept exclusively.
Note: If you choose Accept exclusively, TeamViewer will disconnect from the internet – that means it will no longer be possible to make or receive connections using the TeamViewer ID, and the Computer & Contacts list will no longer be available.
When you choose Accept exclusively,TeamViewer will display your computer’s internal IP address on the main window of your TeamViewer application. The person who wishes to connect to you over the LAN can enter this IP address into their “Partner ID” field on their own TeamViewer client in order to connect to you.
Note: If you choose Accept, TeamViewer will remain connected to the internet and regular connections using the TeamViewer ID will still be possible. In this case, to receive a LAN connection from another computer, you will need to find out your internal IP address to give to the other person. You can easily do this by opening the Command Prompt and typing:
Your internal IP address will be displayed there as “IPv4 Address”.
3. To start the TeamViewer LAN connection, please make sure that both computers are in the same network.
4. On the connecting computer, enter the internal IP address of the remote computer into the Partner ID field on the Remote Control tab. Click on Connect to partner, and enter the remote computer’s TeamViewer password when prompted.
Now you are connected to the remote computer directly over the LAN, without using the internet.
Note: LAN connections are not included in the connection reports in the Management Console.