ETH embedded hardware_error ai_generated true

ETH: PHY link down, no carrier detected

ID: embedded/ethernet-phy-link-down

Also available as: JSON · Markdown
78%Fix Rate
82%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
32 active — — —

Root Cause

Ethernet PHY cant establish link.

generic

Workarounds

  1. 88% success Check PHY address and MDIO/MDC connections
  2. 85% success Verify RMII/MII reference clock (25MHz/50MHz)

Dead Ends

Common approaches that don't work:

  1. Force link speed and duplex 78% fail

    Mismatched settings, packet loss

  2. Bypass PHY initialization 85% fail

    No link establishment