lakechad4u

please, this is very urgent, i have an aruba 650 controller which i configured with this ip addre 10.156.2.9, but the next day i wanted to login into the interface the ip addre i configured is not accepted. so i went to a command prompt to type ipconfig and to my surprise am seeing this ip address 169.254.193.8. i tried typing this ip in explorer but cant log into my aruba 650. pls what can i do