Powerconnect 8024F 100Mbps copper port speed

Hello, According to the spec sheets, 100Mbps should be supported on the copper ports. However when I connect a device at 100Mbps, it just says there is no link. The lights on the front are lit, one green one orange at the port. When I try configuring the port and forcing the speed to 100, it tells me it is invalid. How do I connect 100Mbps devices on this switch? Running latest 5.1.10 firmware. Thanks in advance!