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Forgot to mention it installs the realtek dkms drivers so your NIC's should be fine as Linux will install the correct drivers but it may select the first NIC for Ethercat. The automated tuning on my tests is about 50 % better than any of my  manual tuning attempts.
typing sudo verify will generate a PDF report card.

Typing sudo MrRodW-tuner --help will list some available options including selecting a different NIC but a bit untested right now. Sorry, it does not know German but I did try to treach it Italian at one stage but I could not test it here in Australia.

nice work guys!

If its working, I think you should add a PR of the driver, not the proof of concept hall, inin anf\d GUI extensions

Here is a checklist of the key optimizations required for a `PREEMPT_RT` real-time kernel on Debian, specifically tailored for network performance on interface `eno1`.

### 1. BIOS/UEFI & Hardware Level

* Disable **Intel SpeedStep / AMD Cool'n'Quiet**
* Disable **Global C-States** (C1E, C3, C6, etc.)
* Disable **Intel Turbo Boost / AMD Core Performance Boost**
* Disable **Hyper-Threading (SMT)** *(highly recommended for strict determinism)*
* Disable **System Management Interrupts (SMIs)** / Advanced Power Management

### 2. Boot Command Line (`grub-customizer`)
lastcore = the last CPU you have. say its 3 on a 4 core CPU but yours may be different
* Add `isolcpus=3` to isolate specific CPU cores for RT tasks
* Add `nohz_full=3` to enable full dynticks on isolated cores
* Add `rcu_nocbs=3` to move RCU callbacks off isolated cores
* Add `processor.max_cstate=0` and `intel_idle.max_cstate=0`
* Add `pcie_aspm=off` (disables PCIe Active State Power Management)
* Add `skew_tick=1`

### 3. Network Interface (`eno1`) Optimizations

* Disable **Adaptive Interrupt Moderation** (`ethtool -C eno1 adaptive-rx off adaptive-tx off`)
* Set static interrupt coalescing to 0 (`ethtool -C eno1 rx-usecs 0 tx-usecs 0`)
* Disable offloads causing latency spikes:
* Generic Receive Offload (`ethtool -K eno1 gro off`)
* Large Receive Offload (`ethtool -K eno1 lro off`)
* TCP Segmentation Offload (`ethtool -K eno1 tso off`)
* Bind `eno1` queues to the single dedicated, isolated CPU core

### 4. Operating System & IRQ Tuning

* Increase the real-time priority of the `eno1` threaded IRQ handlers (using `chrt`)
* Set the `eno1` IRQ affinity mask to use isolated core
* Set the system power management policy to performance (`cpupower frequency-set -g performance`)
* Disable the `irqbalance` daemon (`systemctl disable irqbalance`)

 

Well guys, I switched to a humble dell optiplex 5050 and the everything works perfectly. 
nuclear option. It still bugs me I can’t figure out what’s wrong with the ASUS. But I’ll take the ‘win’ for now…

Do you have anther PC or another Mesa card to see which device is dropping the connection?

Guys, literally as I was typing that this only happens with MPG stimulus, the computer crashed as I was launching LinuxCNC in the background! I completely unplugged all encoders and launched LlnuxCNC again, and it crashed again. 
This is no longer an MPG issue! Its a random computer issue I cant figure out. 
The crappy part is every component on the computer is NEW, and tests fine. There has got to be some BIOS setting I am missing. 

At least I can stop chasing my tail on the MPG. Before anyone asks, the crash logs are blank, no reported errors.  

As a point of interest, there is still something screwy going on with the computer being able to find the 6i25...

Hi Mueke,

Der ethercat hal Driver wurde komplett überarbeitet.
Beachte diesen threat:
www.forum.linuxcnc.org/ethercat/58103-et...m-jitter-fix?start=0

Das GitHub repo ist hier:
github.com/linuxcnc-ethercat/linuxcnc-ethercat

Wenn du Hilfe benötigst, sag Bescheid 

Not sure but I don't get an error when using 'M99' in gmoccapy.

There is some ongoing development on the documentation so that maybe broke something.

M99 is not working in Gmoccapy. 


I tested it in master branch and in feature_g54_on_program_stop branch.
It doesnt work in both branch.
It works in Axis GUI. 

M99 link is not working too:
 

see updated link above, also note changed usage as I wanted to follow the 'disable_g92_persistence' setting.

for M99 see (I have never used it myself):
linuxcnc.org/docs/scratch/html/gcode/o-c...fanuc-style-programs

what is your machine spindle tool type? tooltall is for non repeatable holders or er collet type holders where the preet length in the holder is not static. probe basic's native setup is for repeatable holders such as bt30/40 cat40 etc

guys, the 7i77 is fed off an independent 5vdc power supply, switches are set appropriately.

I would like ask you for add this information in manual for M2 and M30 definition.

linuxcnc.org/docs/devel/html/gcode/m-code.html#mcode:m2-m30

How M99 works? What M99 do? I didnt find definition.

ok guys, overwhelming responses!! Thank you all for the awesome support!!

I do have a spindle, z, and x encoder, all attached to servo drives. I do not have the drives powered right now because I do not want to attach anything else for fear that I've done something wrong in the config/pin out. I can afford to replace an MPG, I cannot afford to replace a drive...

The original MPGs that came with the machine (Fryer ET18) are labeled as OLM-01-2AD by Maxmar Controls Inc. I presumed (as unlikley as it was) that both MPGs were bad because they both (X and Z) would crash the computer if they moved even one pulse.
The replacement MPGs are no-name Chinese, but are also 6 wire, 5VDC differential encoders. Pictures of those are in my previous posts. It doesnt appear to matter though, the new encoders make the machine behave the same as the old encoders. I am unable to find an official spec sheet for these, but the google claims they are standard quadrature A/B rotary MPG 5VD.