I have WMC + Ceton Echos setup and have seen this issue as the few others above have. the only way i am able to remote into the Main PC hosting the WMC content is by shutting down all the Cetons in the house and then i can remote just fine. I agree this is not a solution and a very inconvient workaround but it works. And this does seem like it has started within the last few versions of TeamViewer.
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