Ethernet controller: Atheros Communications Inc. AR2413/AR2414 Wireless Network Adapter [AR5005G(S) 802.11bg]
Test & try:
sudo rmmod ath5k
sudo modprobe ath5k nohwcrypt
After OK, make peranent:
sudo sh -c "echo 'options ath5k nohwcrypt' >/etc/modprobe.d/custom-wireless.conf"