Gigabit port problem on ProCurve 2650
Part of our network consists of 2 HP ProCurve 2650 switches (one in our ICT suite on the 2nd floor and one in a "data cupboard" on the ground floor). The switches are connected via patch panels (i.e. not directly cabled).
The problem I've got is that we cannot get a Gigabit connection between the 2 switches. The 2nd floor switch has been patched to one if its gigabit ports but when I patch the other end to the gigabit port of the ground floor switch, I get no data passing through. When I use one of the standard 100mb ports on the ground floor switch, however, the switches do talk to each other. It sounded like a faulty port but I've tried a laptop plugged into the gigabit port on the ground floor switch and I get a connection...
Does anyone have any idea what might be causing this?