Thank you for contacting the Intel Embedded Community.
In order to better understand this forum, we would like to address the following questions:
Could you please verify that the affected design fulfill with the requirements that answer the questions 2.11, 2.22; on pages 9 and 10 of the Intel(R) Ethernet Controller I210/I211 FAQs? In case that your answer is negative, please implement them and inform us the results in detailed way.
Could you please tell us all the information of the switches related to this inconvenience? If this situation happens just with one switch, could you please try to reproduce it with different switches and let us know the outcomes?
Could you please confirm if the affected project has been reviewed by the Schematic Review Service? In case that the problem persists, please follow the necessary steps to send your design to be reviewed.
Please give us all the information that should answer these questions.
Thanks for your help to solve this issue.