I have a 1142N which does not join the WLC when connected via a 2960 switch. When I connect a different lap 1142N to the same port on the same switch using the same cables, it does join the lap to the WLC. And when I connect the first lap directly to the WLC it also works fine.
Resetting the failing lap does not fix the problem. All software levels on the lap are the same.
Anyone an idea what could be wrong?
Thanks in advance.