Network Inspector reports piggybacking devices

Question 1: When Network Inspector reports other devices than your own, what is the threat?

Question  2. If I have never given out the password to my router how can other devices connect to my router?

Question 3. How can I block these other devices that are reported as connecting to my router?

Hello Terry, 

We are glad to clarify your request. Could you please share us the screenshot (https://support.avg.com/SupportArticleView?urlname=AVG-Create-screenshot) reports which you received from Network Inspector? So, we can check and help you further with it. 

You can post the screenshot here in your topic. Click on Answer & then click on the Image [mountain symbol] & follow the instructions. Thanks in advance.

Hello Terry, 

We are glad to clarify your request. Could you please share us the screenshot (https://support.avg.com/SupportArticleView?urlname=AVG-Create-screenshot) reports which you received from Network Inspector? So, we can check and help you further with it. 

You can post the screenshot here in your topic. Click on Answer & then click on the Image [mountain symbol] & follow the instructions. Thanks in advance.