en comparant un log ou ca ne marche pas, et un log ou ca marche, on voit a quel moment ca foire :
Marche pas
Failed to find NVMEM device
[ 13.325384] airoha_eth 1fb50000.ethernet lan2: PHY [mt7530_dsa-0:05] driver [Generic Clause 45 PHY] (irq=POLL)
[ 13.335434] airoha_eth 1fb50000.ethernet lan2: configuring for phy/usxgmii link mode
Ca marche
Failed to find NVMEM device
[ 13.465175] Realtek RTL8261N mt7530_dsa-0:05: rtkphy_config_init:80 [RTL8261N/RTL8264/RTL826XB] phy_id: 0x1CCAF3 PHYAD:5
[ 13.761930] airoha_eth 1fb50000.ethernet lan2: PHY [mt7530_dsa-0:05] driver [Realtek RTL8261N] (irq=POLL)
[ 13.771543] airoha_eth 1fb50000.ethernet lan2: configuring for phy/usxgmii link mode
Remplacer la Bbox par un routeur