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I still get the same error after disabling eee 

The sudo grub-customizer did not disable eee for me.   

you will need to connect the joint position hal pin to the respective vismach hal pin.
This can be done in either the INI or a hal file.
For an example see
github.com/LinuxCNC/linuxcnc/blob/master...ilting/xyzac-trt.ini

I do actually like the way the spindle encoder is mounted. Unfortunately, I already sourced a SICK absolute multiturn SSI encoder ATM60-A4A 13x13 bit a long time ago and only paid 65 EUR for it - or I'm going to use my leftover Baumer OG73 S SN1024 1V_pp encoder, which I received as a gift a long time ago. In case neither implementation works out as it should, I'll have a detailed look at your encoder ( AliExpress Link )

Back to the modified EL5021 terminal: I couldn't believe that it was that easy to modify it and be able to read the encoders back. That's when - as any sane person would do xD - I got into the car, drove to my parents' house, and tested the modified terminal on the Maho CNC mill. What can I say, it's working like a charm, even on the first try :o So, yes, an EL5021 Beckhoff terminal can actually read 11µA_pp signals and you only have to modify 9 resistors in total. A rudimentary schematic is attached I'm not able to measure the capacitance of the capacitors due to the installed resistors within the circuit, but their values shouldn't really matter (maybe an RC low-pass filter is no longer tuned as it should be, but that shouldn't cause problems here - I hope). I documented the very first test of the modified terminal and uploaded the video to YouTube.

I've also attached a screenshot of the CiA Danfoss VFD diagnostic tool for anyone interested

Yes 50000

For testing purposes with just a parallel port, you could use 2 pins for one signal and invert one in hal
to get differential signals.

As long as the output bits come from the same physical port (say PP pins 2..9),  and the hal addf
order and thread is correct. the outputs will change simultaneously.

50000

The reason ethtool is not found is that it's installed in /usr/sbin/
and that's not on the default user path. (but is in the default root path)

Thank you, but I have to modify the ini and hal file....?
I tried it with KI, but not working...

Awesome work Patrick!
Regarding the spindle, here is my solution for a similar setup, the idea was to be able to keep the drilling operation possible. It works well 
 

Its not working but i got everything to work.

github.com/mgiaco/ecam_cnc/ => axis
github.com/mgiaco/ecam_cnc/tree/probe_basic => probe basic

Now i am try to get manual tool change to work as i like.

Hi, I am new to linuxcnc. Now i got my machine running with linuxcncn and mesa. If someone like to see my config ongoing

github.com/mgiaco/ecam_cnc => axis
github.com/mgiaco/ecam_cnc/tree/probe_basic => probe basic

So my long time goal is to write a program with fusion360 oder freeCAD and then mill with auto tool change on my machine.
So before i go more forward i would like to ask if i need this tool_length_probe  change (github.com/TooTall18T/tool_length_probe) also for the current version of probe basic.

As a beginner it´s really a little bit confusing because it seems that there is alsmost everything ther in probe basic now in the actual version. I wachte the  video from ToolTall18T but this is 2 Years old i think. So can someone give me some help here?

Thanks alot.



 

once all that's done, do the ping command PCW asked for and share it. It should be pretty good now.

type: sudo ethtool --set-eee eno1 eee off

this will be lost on boot so to make it permanent
type
sudo grub-customizer
open the second tab and on the line it says quiet, add: igb.EEE=0
save and reboot. 
check eee is off again with ethtool

With energy efficient Ethernet enabled, sometimes your NIC has a holiday which is not good for latency

Also type man hm2_eth and follow the instructions so disable coalescing if you have not done that yet on your 10.10.10.1 NIC

Very nice
Set BASE_PERIOD to 5000. spindle_at_speed works correctly.
Thanks for help !