@Yannie Thanks for the reply! I'm not using a dedicated media converter, my SFP module converts from optic (switch) to copper (network card). So the network card and switch are connected via a cat7...

I recently bought a TL-SG3428X switch, and a TX401 10GbE PCI-E network card. There are about a dozen of computers connected to the normal 1GbE ports on the switch and they all work great, didn't even...