Pozerám kontrolu rozhrania ethernet na acer nitro an515 á je https://hrubos.tech/blogy/content/images/20260907130037-link_detected_yes.png Teda asi sa dačo stalo na mercusys router opakovači v sieti. No nič vydržalo to 2 roky a nabúralo to niečo, alebo sa to pokazilo v opakovači mercusys ME10:

#!/bin/bash

IFACE="enp43s0"

echo "========================================"
echo " Ethernet diagnostika: $IFACE"
echo " Príkaz: ip link [enter] na zistenie IFACE"
echo "========================================"
echo

echo "[1] Stav rozhrania"
ip link show "$IFACE"
echo

echo "[2] Ethernet / PHY"
sudo ethtool "$IFACE"
echo

echo "[3] Driver a hardware"
ethtool -i "$IFACE"
echo

echo "[4] EEE (Energy Efficient Ethernet)"
sudo ethtool --show-eee "$IFACE"
echo

echo "[5] Štatistiky chýb"
sudo ethtool -S "$IFACE" 2>/dev/null | \
    grep -Ei 'err|drop|fail|crc|timeout|fault' || \
    echo "Žiadne zjavné chyby v štatistikách."
echo

echo "[6] Kernel log pre Ethernet"
sudo journalctl -k -b | \
    grep -Ei "$IFACE|r8169|ethernet" | tail -50
echo

echo "========================================"
echo " Diagnostika dokončená"
echo "========================================"

---