Dear @PatrickMcC 

PatrickMcC wrote

Hi all,

 So I got this switch a week ago and I have been struggling with getting good speeds from it. The switch shows I am connected at 10gbe and the connected NICs also show 10gbe, but I am only hitting speeds of 200mbytes writing to NAS between two NVME SSDs. When I connect directly, I get 850mbytes. The connections are via a 2 meter DAC cable from the switch to the NAS and a 20ft Fiber cable connecting via SFP+ transceivers to the PC. I have also tried CAT6 from the PC to switch also with no luck.
The transceivers are not TP-Link but the ones I bought are listed to work with TP-Link products.
I have also tried the switch standalone and also with Omada, with no effect (Jumbo frames do not seem available using Omada).

Is there some setting I am missing on the switch which is affecting the speeds? If I can't resolve this I will have to return the switch and probably go with a Microtik one instead.

Can anyone help?

Thank you for your feedback. Could you please help me check two more things?

1. Does the switch port show 10G speed on the Controller->Devices->choose the switch->right menu page?

Specially the port connected to the NAS;

2. Did you enable LAG/LACP function on the NAS? If so, please try to disable it;

3. If you have two PCs, please follow this FAQ to run Iperf test and share me the test result