Route server #2 copper connection

When I went to insert my optic into the switch for my upgraded 10G connection, I noticed that the cable for route server#2 was against the cabinet door, and simply opening/closing the door caused the link to bounce. Since the link had gone down from just opening the door, I switched the Copper SFP adapter to a different model, and it appears to be more compatible with the RJ45 connector on the patch cable since the link now stays up when the cable is moved in a normal manner. Jeremy