@David-TP A further follow-up; I called in to TP-Link customer service and spoke with someone. Based on the tests we ran, she's recommending they send out a replacement of my TP-Link Switch. So we'll...

Hi @David-TP, Thanks for your reply. The model on the TP-Link Switch is: TL-SG116 (UN) V1.6

Hi folks, I'm just setting up my home network for the first time, in a new house. 10 rooms are wired with CAT6A cable to the basement where the equipment is located. I've already got Xfinity...