A new wiring closet is setup to serve users in the east wing of a campus. Equipment is moved from the old closet, 50 feet (15 meters) away, and installed in the new closet. Users immediately begin reporting intermittent connectivity issues with both corporate and Internet resources. Which of the following is the MOST likely cause?

A.
Protocol mismatch

B.
MTU size was not increased for the new distance

C.
Incorrect VLAN assignment

D.
Incorrect cabling