@Kevin_Z You were right -- when I tried again after rebooting the router I was successfully able to downgrade to 1.2.0. I don't know why it didn't work for me yesterday, but it worked today. Thank...

@andrewcburnard The link for 1.2.0 is provided in this post: https://community.tp-link.com/us/home/forum/topic/609452?replyId=1213870 But when I tried to install it on top of the latest beta 1.2.2...

@Kevin_Z - I've been having the same issues as the others on this thread, with the Internet dropping multiple times per day. Just this morning alone, it happened twice within the span of 15 minutes....