Stick 3820x2 keeps dropping connection

The Roku stick constantly drops the internet connection. I have a LG smart tv and the connection works/holds while streaming.  I have done everything you suggest (unplug, reset, recycle the modem, etc) several times and the stick connects then drops the connection after 20-30 minutes.  
I finally pulled out an old stick that’s a few years old and it works without issue. I’ve included the tracking info.

it would be nice if Roku would send a replacement or a credit for new product.  I purchased this 3/4 months ago so clearly product is defective.