In my opinion, you need contact with tp-link. This is the old switch, Maybe they will suggest you RMA directly.

I remember that TL-SG3109 is the old tp-link switch. For TL-SG3216, SFP ports support LAG.

Maybe support. My old MC110CS is version 1, it supports. I don't know what is your hardware version

um..I suggest you contact with tp-link directly. http://www.tp-link.com/en/contact.html PS: I found one document about rack ears in tp-link website,maybe help you....

If you only connect one PC and Ricoh MP2550 to TL-SG1016D, will you meet the same problem? This problem is so strange

R1D2 wrote If it is statistical only, they should change the column names to "RxTotalPkt" and "RxTaggedPkt" instead of "RxGoodPkt/RxBadPkt". :( They said the tagged 64byte packets be thought to be...