Hello @gtagamer124 

Sorry for the late reply, for powerline device unstable issue can you help confirm some details here:

May I know House Led/LED Status on both devices when Powerline drops connection? 

1) If House Led goes off, that could be caused by some interference in the powerline circuit, try a different wall socket for extender unit, and also test PLC kit in the same room and see if issue still happens

 If House Led is On when issue happens, please check the IPv4 address and gateway and send us a photo: https://www.tp-link.com/support/faq/838/

2)  How often does the issue happen? How to recover the connection, like reboot router or powerline device. 
3) When issue occurs, do not reboot but try to ping the default gateway and send us the ping results：https://www.tp-link.com/support/faq/425/
4) May I know your network topology?e.g Archer C7 <Ethernet>PA4010 downstaits  ___<house powerline>WPA4220 upstairs.

 Do you have a stable wired connection on the main router?

Thank you.