I can't connect to internet via wired, adding DSL profile with user and password.

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While installing kali linux 2.0 there was a warning telling that there is missing non-free firmware


but it is in /lib/firmware/rtl_nic/

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Have Realtek RTL8139/810x Fast Ethernet Adapter PCI.

Was no problem on previous versions of Kali.

1 Answer 1


I am having the same problem but have found no resolution. sometimes I can fix it by:

ifconfig wlan0 down
ifconfig wlan1 down

wait a little and try:

ifconfig wlan0 up
ifconfig wlan1 up
  • use ip which is a native linux command to do the same: ip link set wlan0 up
    – Erdinc Ay
    Dec 26, 2022 at 0:04

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