I have a WLC controller with 1131 access points installed in 2010 which I have not looked at since then. One of the 1131 went dead and I want to replace it. Back then seems all I had to do is open Internet Explorer, enter in the IP address, click passed a warning message and I could get to the WLC2106 log on page. Tonight, I tried to repeat the steps and get can not display the web page. I can ping to the WLC2106 IP address. I can use Putty to access. What am I missing to be able to get into the graphic interface?