@Sherman111 I have got some Optcore TL-SM311T-compatible copper RJ45 SFP modules now. I can confirm, they are working well. I'm using them in TL-SG2210MP, TL-SG2218 and TL-SG3428 switches.

@Newtonite If your switch is connected to a network with a DHCP server, I expect the switch should get an address from the DHCP server. You could perhaps look at your DHCP server's status page to...

I have a TL-SG3428 and a TL-SG2210MP switch. What SFP modules could be used to interconnect them within a rack? Eg What is a compatible 1Gbit SFP copper RJ-45? What is a compatible 1Gbit SFP DAC...

Fae wrote Are your switches all working in Standalone mode? Yes. Is that possible for you to downgrade the switch firmware and confirm if it's the firmware issue? The TL-SG2218 switch is now running...

I set the timezone to +10:00 (Melbourne), with NTP sync. I enabled the daylight saving adjustment for Australia. It is syncing the time to NTP, and it's showing it in the +10:00 time zone, but...