Model :

Hardware Version :

Firmware Version :

ISP :

I recently installed Pi-hole on my network to block ads and to run as a network monitor.

To my surprise I found out my TL-WA855RE v1, was pinging the following time servers roughly every 4 seconds 24 hours a day:
time.nist.gov
[*]time.nist.g
[*]time-a.nist.gov
[*]time-b.nist.gov
[*]time-nw.nist.gov
[*]au.pool.ntp.org
[*]nz.pool.ntp.org
This device has a huge amount of DNS requests to these servers every single day, and I want to know what the reason etc for it is, and or other than removing said device from my network, how I can fix the issue?