Hi @Teeple What will happen if you connect this test PC to the router directly?(without any switch between them) In normal case the switch won't influence TCP/IP layer.

Hi @Teeple I tired Easy Smart Utility v1.3.13.0 and I did not see any error message on it. Can you share us the screenshot of error that you got?

Hi @R.n. Thank you for your valued feedback!

Hi @R.n. Many thanks for your valued feedback. I will forward it to the developer team and keep an eye on it.

Hi @R.n. Thank you for your kindly feedback. This has been forwarded to the developer team for further evaluation. BTW tp-link Omada already supports Google Authenticator 2FA. What is 2FA and how to...

Hi @kolas On your log is there any thing looks like "xxxx port Gi1/0/x blocked"? If so, there could be a loop on the network, and switch's loop detection took effect.