I really hope someone has some suggestions - I'm at a loss

Twice in one day I've had the following group of errors come up in the fault table: (detailed list at end of message)

0.0 Addition of communications interface 98-05-10 07:55:17
0.0 Reset of communications interface 98-05-10 07:55:12
0.0 Loss of communications interface 98-05-10 07:55:12

Any ideas why this might happen? I can't seem to find anything in the troubleshooting guides/manuals that even acknowledge the existence of the first and last messages!

What would cause the module to be "lost"? There was no evidence of power or networks dips (in fact, unplugging the cable gives a different error altogether). Pushing the "hard reset" button on the ethernet module replicates the middle error.

My hardware: VersaMax IC200CPUE05

Thanks!

Chris

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Detailed error codes:

0.0 Addition of communications interface 98-05-10 07:55:17
Error Code Group Action Task Num
4 8 2:Diagnostic 23
Fault Extra Data: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0.0 Reset of communications interface 98-05-10 07:55:12
Error Code Group Action Task Num
5 8 2:Diagnostic 23
Fault Extra Data: 01 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0.0 Loss of communications interface 98-05-10 07:55:12
Error Code Group Action Task Num
79 4 2:Diagnostic 23
Fault Extra Data: 01 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00