TP-Link's tech support couldn't help me with port-based QoS even to say what priority level the connection from the switch to the router should be. They said they'd research it and get back to me but...

Model : TL-SG108E Hardware Version : Firmware Version : 160526 ISP : Air-Pipe All settings at factory default except: Using Port-Based QoS: Port 1: Router (4 Highest) Port 2: VOIP Phone (4 Highest)...

Model : Hardware Version : Firmware Version : ISP : All settings at factory default except: Using Port-Based QoS: Port 1: Router (4 Highest) Port 2: VOIP Phone (4 Highest) Port 3: (3 Medium) Port 4:...