New install on previously working system

Running 2.9.5 on a RPi 4. I had this system running well earlier, until I tried to update Easy Probe. Now, I can't communicate with the Mesa card on ETH0.

I had to replace my main PC, which wants to use the 192.168.1.x addresses. I changed the jumpers on my 7i96s to 10.10.10.10, and I can ping the card.

When I run LinuxCNC, I get the attached report.
Any suggestions?

If you could your ini & hal files and confirm the IP of the computer you are using. It could be as simple as an in correct IP in your Hal file.

From your error report: Usually means you have set the IP address on PC same as on Mesa card, the PC must have different last number for IP address, so
10.10.10.11 is OK for PC if Mesa is set at 10.10.10.10

Here are the .ini and .hal files.
The static IP of the RPi is 10.10.10.100 - I can ping the Mesa card from the terminal.
   

What does
ip a
return?

From your hal file Remove the / from the first 10

That got me up - but now I've got "Unexpected realtime delay on task 0 with period 1000000"

Latency test gives 60624 ns jitter on the servo thread and 70111 ns jitter on the base thread.

If your're running a mes card there is no need to test with a base thread. Servo thread is all that is needed.
Usual advice, turn off power saving, anything that attempts to change clock speed in the BIOS, also turn off hyper threading if that is an option, for a 4 coremachine you might get some relief from isolcpus=2,3

It may help to supply some details regarding the machine you're using.