Please, any tips? Any idea what could be causing this?
Please, any tips? Any idea what could be causing this?

SFP TO RJ45 TRANSCEIVER SFP MODULE COPPER SFP OPTICAL PORT TO RJ45 ETHERNET PORT
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Intel X520-DA2 10Gb 10Gbe 10 Gigabit Network Adapter NIC Dual Port E10G42BTDA
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Original Cisco SFP-10G-LR= 10GB SFP+ Single-mode 10km 1310nm Module 10-2457-02
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