SEP Unable to install..1708 & 1603

Hello,

Been trying to install SEP 11.0.6 on two servers and keep on falling flat! Please can someone assist...I have uploaded the SEP_INST log file - too much to go over. Servers are Win 2K8 R2 and had SEP installed but I uninstalled it (as the service would not start) and did cleanwipe as well. Still, not able to install. 

The errors seem to be 1708 and 1603.

Thanks!