@Clive_A Thank you, I took now on the switch a different port, replaced the network cable, happend again. I will try if a exchange of the device is possible. - My assumption was, that, even if the...

Hi, I have with the SG2016P v1.20 exactly the same issue as described here: https://www.reddit.com/r/HomeNetworking/comments/jmez6h/tlsg1016pe_switch_dead_port/?rdt=46162 Their solution is to reboot...