@Joseph-TP Here i am again. I have the 10Gtek 10Gb SFP+ SR Multimode Modul, 10GBase-SR LC plugged in and its still not working.

@Joseph-TP Ok ill buy them and come back to you

SFP+ connection sticking to 1gbps. Using it for a LAN connection to my Server (Proxmox). I have following tansceivers: 5G SFP28 SFP+ Transceiver, 25GBase-SR Module, 850nm MMF5G SFP28 SFP+...