The TeamViewer IP Address Range is 178.77.120.0/24, which translates to 178.77.120.1 – 178.77.120.254. Step 4: Block TeamViewer Port. This step probably isn’t necessary, but can be good as an extra layer of protection. TeamViewer connects on port 5938, but also tunnels via ports 80 (HTTP) & 443 (SSL) if that is unavailable.
You have another option that is a little tedious, but it might work if squid is an option. You could create a teamviewer network(s) alias. Then check the state table for a machine with a connection to a teamviewer server, and add the server IP or network to the alias. Can teamviewer use local network instrad of my internet After getting locked out repetedly from TeamViewer for "Commercial Use Detected" I wanted to look into an option to replace it. I wanted something accessible from outside of my network, with an address book and clients for Windows, Mac and Android. I had narrowed it down to a few options and did my research: TeamViewer | The ChannelPro Network TAMPA, Fla., April 7, 2020 /PRNewswire/ -- TeamViewer, a leading global provider of secure remote connectivity solutions, now offers its online collaboration solution Blizz to all schools and universities free of charge. - read more Teamviewer down? Current outages and problems | Downdetector
You have another option that is a little tedious, but it might work if squid is an option. You could create a teamviewer network(s) alias. Then check the state table for a machine with a connection to a teamviewer server, and add the server IP or network to the alias.
Jul 21, 2020
Fix: TeamViewer Not Working On Your Windows PC
Network monitoring is a fresh addition to TeamViewer Monitoring. We appreciate your feedback, or specific feature requests. If TeamViewer Monitoring detects an unknown device, and you can identify it, feel free to provide us with the device info and the OID, so we can add it to our database.