Hi @WhyAndBecause,
Thank you for visiting the Community!
This prompt occurs because the TeamViewer client on the remote side has a setting blocking all incoming connections.
Can you kindly check with the user at the remote side to ensure that TeamViewer at the remote side accept the incoming connections, please. The setting path is shown below:
A screenshot is also attached, and I hope it helps to understand the steps
Let me know if the action of changing the setting option helps with your remote connection!
Best,
Ying_Q
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