We installed a 3825 router with an SFP fiber connection and the fiber didn't come up. The media-type was set to SFP and speed was autonegotiate. I had to revert back to my previous config of having the fiber go through a fiber to ethernet converter and connecting it up using ethernet.
I would like to connect the fiber directly to the router... What can I do to get this to work??? Is there something I'm missing on the port config, should I have shut the port down and back-up again?? Any clues??