![]() The current version as of this writing is 15.21. ![]() ![]() ![]() (macOS 10.13 High Sierra tops out at TeamViewer 15.19, and macOS 10.11 El Capitan and 10.12 Sierra top out at TeamViewer 15.2. If you already had TeamViewer 15.x installed on an earlier version of macOS, that might continue to work, for the time being. In practical terms, this means you’ll need to be running at least macOS 10.14 Mojave on both computers if you are installing TeamViewer from scratch, and want to use it for free. This support article lays out it out, refreshingly bluntly: “If your hardware does not allow an update to the latest version, unfortunately, you cannot benefit from the free version.” This can be a problem if you are running an older version of macOS that doesn’t support the latest version of TeamViewer. Specifically, you will have to be using the current major version of TeamViewer, or it will refuse to connect. So, they have been narrowing the lane in which personal users can use it for free. Most ISP's do not change the IP address for a home very often, but after a power failure, or just because the ISP wants to, it can be changed, so be prepared for it to change.TeamViewer, the erstwhile remote control software that we here at IvanExpert use for remote controlling our clients’ computers, has, like every other company, been hard at work trying to figure out how to get more money from their existing users. If you do not want to use a dynamic DNS service, then you can have your Grandma ask a web server what her IP address is Then you ONLY need to use the Dynamic DNS name, instead of trying to find your Grandma's IP adddress. The Dynamic DNS name will deal with your Grandma's ISP changing her IP address assigned to her router. Then you should get a free Dynamic DNS name from a service such as, and run a dynamic DNS updater on Grandma's Mac (you can download an updated from that works with their service). gives instructions on setting up port forwarding for a lot of different router makes and models. But to do this without iChat to get through home router, you will need to configure Grandma's home router to port forward port 5900 (the VNC port number) from the internet to her Mac. If you do not want to use iChat, then there is the build-in Mac OS X screen sharing. If using an AOL AIM account, you can use other messaging clients on other computers, smart phones, tablets that also speak AOL AIM protocol to send text messages to Grandma. Now you start an iChat session, and one of the iChat options is share my screen.Īnother advantage of iChat is that you can do audio sessions with Grandma, or video sessions, and just plan text messages back and forth. Then setup up iChat accounts (this can be free AOL Instant Messenger (AIM) accounts maybe even iCloud accounts, but I have not tried them on Leopard and Snow Leopard, so I'm not sure) On Grandma's Mac, System Preferences -> Sharing -> Screen Sharing If you do not want to use, or have issues with getting an older version to run, I would not use Chicken of the VNC, since Mac OS X has its own built in screen sharing. The biggest problem with making connections over the internet is getting through the home router. is very good at making connections over the internet. Since you are using older versions of Mac OS X, you may need to get an older version
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