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HL15 (Supermicro X11SPH, Intel X722) to a UniFi USW-24-POE: every DAC and SFP fails, BIOS reports SFP not recognised
A pre-built HL15 server (Supermicro X11SPH-nCTPF wth Intel X722 SFP+ ports, Rocky Linux) would not link to a UniFi USW-24-POE over a VANDESAIL SFP+ DAC: the switch port stayed Disconnected under every negotiation setting on both sides. After ordering a 10Gtek cable the host reported network driver…
