Correct me if I am wrong, but isn't that one of cisco's NON-POE switches? Greenish in color, with the 2-1gb card slots? I will have to look but i do believe i have that one. I will have to pull it out and get it hooked up to see if i have the same issue. I believe you have to enable/disable something for the 1gb port on the switch or even command line setup. The soonest I can get this done is as soon as my replacement DGL-5500 gets here.