Problem solved. I took a look at what was connected to the router (vs the WiFi access points) and saw that that device was paused. Not sure how that happened. Unpaused it and now it's accessible. The...

Never had this problem until I installed TP Link XE5300 access points a couple days ago. All my Kasa switches work fine after the install, and all are remotely accessible - except for one HS200. The...