StepperOnline A6 Servo

It has been very stable other then an occasional following error when I home.
I'm still using standard homing, guess I haven't taken the time to pursue the absolute encoder instant homing.

Only time that I had a racking issue was when one of my Y homing sensors went bad and the other side of the gantry kept going...

Well, I can't recommend the servo reference run!
The problem is that it is not monitored. If an axis does not move, Linuxcnc does not notice. It happened to me again today. During homing, a Y-axis does not start moving, even though I waited until all axes were OP.
I will switch back to Linuxcnc homing.
It's a pity that the servos do not output the Z signal. 

@mobiusToast
Did you have any issues with the Drives sometimes not homing at all? Or them jumping at the end of the home procedure with ER87?

Hello,

since my problems persist and one Y-axis does not move during homing, and I don't give up so easily, I tried “dmesg” and “ethercat slaves -v” again.I see two errors in the output:[  459.958251] EtherCAT WARNING 0-1: Slave did not sync after 5000 ms.[   13.362825] EtherCAT ERROR 1: Failed to calculate bus topology.Otherwise, everything is OK and the drives go to OP.Where could the problem be?I also don't understand why I have to turn off the servos and Linuxcnc and restart them for homing to work. 

I would try using a new LAN cable, preferably CAT6

I use cat5e 1m and 0.25m.
Is that the problem?