If the WebGUI delivered client does not work, try the stand alone IPMIviewer.
tar zxvf IPMIView_2.9.32_bundleJRE_Linux_x64_20140624.tar.gz cd IPMIView_2.9.32_bundleJRE_Linux_x64_20140624
java -cp .:::::$PWD/iKVM.jar:$PWD/IPMIView20.jar:$PWD/TrapView.jar:::::: \ -Djava.library.path=. \ -D tw.com.aten.ikvm.KVMMain \ $IP $USERNAME $PASSWORD null 5900 623 2 0