I actually tried this as my second step in trouble shooting, the first being using different ports.
In the non-omada management software, it defaults to 10G, and if the devices is on before the switch it negotiates 10G correctly and works at full speed (tested with iperf3). As soon as any of the 10G connected devices is rebooted, I’m back to 1G. To fix it, I then have to set the port to 1G with flow control on, apply changes, save config, refresh page, change to 10G with flow control off, apply, save config and it goes back to 10G again. Alternatively I can reboot their switch and it’s fine again.
In Omada its the same, fewer steps to get there but I have to sometimes do it 2-3 times before it works.
Same issue with both 10G TP-Link switches, so I’m thinking it might be the SFP. Using Intel SFP+ with FS optical cables. I’m using a DAC for the uplink from the 10G switch to my unmanaged 2.5G switch, and that doesn’t have the problem of dropping, always works max speed.
TIL “ArguingOnline” is a hobby.