Errors on LAN-Connection

Hi

I Monitore my Servers with Check_mk. On 4 (all Exchange 2010 Database Servers) i get Errors on my Network-Connection.

Every 10 min to 50 min i have Error-Events like
WARN - [Intel[R] 82575EB Gigabit Network Connection] (up) 1 Gbit/s, in: 1.01 MB/s, in-errors: 0.03%(!) = 0.01, out: 924.16 kB/s

with in-errors (from 0.02 to 0.2%).

How can i find why this errors happen? I captured the traffic with netsh

netsh trace start scenario=LAN  tracefile=log.etl maxsize=1000MB  capture=yes

but how can i find the packets with errors (to find out where they are comming from)

Hope you can help me

Thanks

Arnold