hi, we have a few phones (D715) that will only connect to our network at 100mb and not 1gb, all the other phones are okay, i have changed cables etc, ports etc. but they still only connect at 100mb, if i force it via web interface to 1gb it just never connects.. any ideas? they are al running same firmware etc.
as the pcs are passing through the phones it means it is throttling down the users connection.
could you try to connect it with a short patch cord to the switch (2 meters) and verify if it still aligns the port at 100?