tom@4axCNC:~$ sudo dmesg | tail -50
[ 3703.649885] EtherCAT WARNING 0: 14 datagrams UNMATCHED!
[ 3704.653858] EtherCAT WARNING 0: 20 datagrams UNMATCHED!
[ 3706.657857] EtherCAT WARNING 0: 6 datagrams UNMATCHED!
[ 3707.661869] EtherCAT WARNING 0: 8 datagrams UNMATCHED!
[ 3709.661861] EtherCAT WARNING 0: 12 datagrams UNMATCHED!
[ 3711.673870] EtherCAT WARNING 0: 6 datagrams UNMATCHED!
[ 3712.677875] EtherCAT WARNING 0: 2 datagrams UNMATCHED!
[ 3713.677868] EtherCAT WARNING 0: 14 datagrams UNMATCHED!
[ 3716.677859] EtherCAT WARNING 0: 6 datagrams UNMATCHED!
[ 3716.923050] EtherCAT 0: Master thread exited.
[ 3716.923134] EtherCAT 0: Starting EtherCAT-IDLE thread.
[ 3716.923287] EtherCAT 0: Releasing master...
[ 3716.923297] EtherCAT 0: Released.
[ 3716.923758] EtherCAT ERROR 0-3: Failed to receive AL state datagram: Datagram initialized.
[ 3716.981893] EtherCAT 0: Slave states on main device: PREOP.
[ 3717.216438] pcieport 0000:00:1c.0: AER: Multiple Corrected error received: 0000:01:00.0
[ 3717.216465] rtw_8821ce 0000:01:00.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, (Receiver ID)
[ 3717.216470] rtw_8821ce 0000:01:00.0:   device [10ec:c821] error status/mask=00000001/0000e000
[ 3717.216476] rtw_8821ce 0000:01:00.0:    [ 0] RxErr                  (First)
[ 3717.553906] EtherCAT WARNING: Datagram 000000000484209f (master-fsm) was SKIPPED 1 time.
[ 3755.184338] pcieport 0000:00:1c.0: AER: Multiple Corrected error received: 0000:01:00.0
[ 3755.184351] rtw_8821ce 0000:01:00.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, (Receiver ID)
[ 3755.184354] rtw_8821ce 0000:01:00.0:   device [10ec:c821] error status/mask=00000001/0000e000
[ 3755.184356] rtw_8821ce 0000:01:00.0:    [ 0] RxErr                  (First)
[ 3757.872143] EtherCAT: Requesting master 0...
[ 3757.872147] EtherCAT: Successfully requested master 0.
[ 3757.874275] EtherCAT 0: Domain0: Logical address 0x00000000, 112 byte, expected working counter 12.
[ 3757.874279] EtherCAT 0:   Datagram domain0-0-main: Logical offset 0x00000000, 112 byte, type LRW.
[ 3757.874293] EtherCAT 0: Master thread exited.
[ 3757.874295] EtherCAT 0: Starting EtherCAT-OP thread.
[ 3757.874337] EtherCAT WARNING 0: 3 datagrams UNMATCHED!
[ 3759.873853] EtherCAT WARNING 0: 2 datagrams UNMATCHED!
[ 3761.407073] pcieport 0000:00:1c.0: AER: Multiple Corrected error received: 0000:01:00.0
[ 3761.407091] rtw_8821ce 0000:01:00.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, (Receiver ID)
[ 3761.407094] rtw_8821ce 0000:01:00.0:   device [10ec:c821] error status/mask=00000001/0000e000
[ 3761.407098] rtw_8821ce 0000:01:00.0:    [ 0] RxErr                  (First)
[ 3763.094525] EtherCAT WARNING 0-0: Slave did not sync after 5000 ms.
[ 3763.873850] EtherCAT WARNING 0: 18 datagrams UNMATCHED!
[ 3764.029861] EtherCAT 0: Slave states on main device: OP.
[ 3764.873863] EtherCAT WARNING 0: 19 datagrams UNMATCHED!
[ 3766.512789] pcieport 0000:00:1c.0: AER: Multiple Corrected error received: 0000:01:00.0
[ 3766.512805] rtw_8821ce 0000:01:00.0: PCIe Bus Error: severity=Corrected, type=Physical Layer, (Receiver ID)
[ 3766.512807] rtw_8821ce 0000:01:00.0:   device [10ec:c821] error status/mask=00000001/0000e000
[ 3766.512810] rtw_8821ce 0000:01:00.0:    [ 0] RxErr                  (First)
[ 3766.877862] EtherCAT WARNING 0: 2 datagrams UNMATCHED!
[ 3767.877861] EtherCAT WARNING 0: 10 datagrams UNMATCHED!
[ 3770.881969] EtherCAT WARNING 0: 15 datagrams UNMATCHED!
[ 3772.893858] EtherCAT WARNING 0: 2 datagrams UNMATCHED!
[ 3776.901859] EtherCAT WARNING 0: 14 datagrams UNMATCHED!
[ 3778.909863] EtherCAT WARNING 0: 22 datagrams UNMATCHED!
tom@4axCNC:~$