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3

Do you have a computer connected to google.com (it's 216.58.220.206 from my site) in 1 hop? ARP packets are sent as Ethernet broadcast in the local network segment, so you can use arping for probing neighbour hosts in the same network. Instead of google.com, try it with your default gateway address for wlan0 subnet.


2

You cannot ping a normal NIC because NIC alone does not send any replies. Only a running computer is able send replies Normal network interface cards do not send any replies by themselves. They always need a running software on the computer to do so. When the CPU of the computer is powered down then there is no running software which would send a reply to ...


2

The standard deviation is the average of all deviations from the mean value (here 13.289 ms.) The maximum deviation observed was 455.268 ms (468.557-13.289) and the minimal one was potentially 0 ms. Mdev must then be comprised between 0 and 455.268 ms so 66.726 ms is definitely a valid metric.


0

It seems to be a bug the kernel. After rollback and downgrade of all updated network packages it works again this was the command i used: [root@ulbp2681 ~]# cd /var/cache/pacman/pkg [root@ulbp2681 pkg]# pacman -U linux-4.0.7-2-x86_64.pkg.tar.xz linux-headers-4.0.7-2-x86_64.pkg.tar.xz dhcpcd-6.9.0-1-x86_64.pkg.tar.xz netctl-1.10-2-any.pkg.tar.xz ...



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