I've had this issue. I run 3 PCs at home and I use TeamViewer to wake an old laptop and connect between the two desktops. I also use an iphone and android phone sometimes when I am out or even just sitting in my living room. So knowing that I am genuinely only using teamview for personal non commercial use I instigated an online chat with teamviewer assuming they would fix it only to be put through to a sales rep who phoned me back. I explained my usage and the sales rep told me its OK to use teamviewer in my own home but connecting from outside the home via a phone or ipad is deemed as "commercial use". This seems to fly in the face of what it says on the Teamviewer website where it bangs on about it being free for non commercial use because of the positive word of mouth recommendations that result.
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