I am trying to get my network to be stable for long periods of time. Every once-in-a-while, usually after I have made some configuration change elsewhere in the network, one or other of the ports on the switch become unresponsive so that the device connected to it cannot get an IP address. The problem is then solved by moving the Ethernet cable to a different port. This never happened with a dumb switch. Do these ports have some kind of "memory" that gets messed up?
TP-Link TL-SG3216 managed switch
various other devices and PC's