Why are you on the Arris forums asking about a TP Link device on your network?aaa

Since you are enquiring about the TP link actually this community forum is designed for any queries about Arris Product , if you have any Arris Product please be free to post the issue .

As you are enquiring about TP Link we would suggest to please contact TP Link router provider for further assistance . 

sounds like someone else in your area has a tp-link device. Whether that be a router or an IoT device