Hello!

Just wanted to report an issue I had this morning. I upgraded to 1.6.1 and immediately noticed that the ethernet ports on my remote unit were not working (they were on the main unit). They were getting link, but simply not passing any traffic. Not even broadcast traffic, meaning I couldn't get an address from DHCP. I statically assigned an IP and still no luck. Wifi was working though. 

After doing the basics - checking cables, different devices, rebooting my router (because my M4 are in access point mode) etc I came to the realization that it may have been the firmware. I downgraded to 1.5.8 and everything was working again.

I am more than happy to repeat the test if anyone from TP-Link wants to debug.

Thanks!

-pedro