motor-0-position error beim Abbremsen aus 4-7,5 m/min

If you have both Intel and Realtek MACs available, I would choose the Intel device for realtime.
 (especially if there are issues installing the DKMS Realtek driver)
 

Well, I have installed the DKMS driver r8168 and repeated the ping test and histogram. Ping is a little slower but base thread in the histogram is way better than before!

Here is my ip a and test of r8168:
hanno@Linuxcnc-1:~$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host noprefixroute
valid_lft forever preferred_lft forever
2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 00:0a:cd:00:00:1b brd ff:ff:ff:ff:ff:ff
inet 10.10.10.2/24 brd 10.10.10.255 scope global noprefixroute enp2s0
valid_lft forever preferred_lft forever
3: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 00:23:24:55:94:28 brd ff:ff:ff:ff:ff:ff
altname enp0s25
inet 192.168.178.22/24 brd 192.168.178.255 scope global noprefixroute eno1
valid_lft forever preferred_lft forever
hanno@Linuxcnc-1:~$ lsmod | grep r8168
r8168 581632 0

What do you think about it?

Kind regards and thank you for your support!
Hanno

Here my photos:
 

 

 

Intel might need coalescing set to 0, PCW knows how, i never needed it despite using all kinds of PC's, but there are plenty of members here who needed it and it works properly.

BTW - I tried a lot to get the Intel going, but it was very frustrating and not successful, months ago, you gave me a lot of tips.
forum.linuxcnc.org/42-deutsch/53358-late...hlermeldung?start=30

tommylight, thank you for this tip! Yes indeed, I had the line sudo ethtool -C eno1 rx-usecs 0   on my Desktop to put it in the terminal each time after the PC starts. That helped a lot for the ping as I used the Intel NIC. So I gave Chatgpt the job to make a one-click file out of it, successfully. I can post it here asap, if I go down to my Linuxcnc PC tomorrow (Germany time)THe Realtec NIC is configured by start with coalescence=0, afaik.

PS: Below the file with double click function. delete the .txt and make it executable as a program. (ethool was the name Chatgpt gave it image missing /media/kunena/emoticons/w00t.png )

 

Looks fixed to me.

Wish the LinuxCNC X86 image had the RealTek DKMS driver pre-installed
as the stock driver is NG