Problem with remote install of SLES 11

[ramu_kavati]

Hi,
I am trying to install SLES 11 remotely (with boot options netsetup=1 withiscsi=1).
Installation goes and when it asks for reboot. I have rebooted the machine. But the machine does not boot, throws an error like "Could not login Initiator reported error 4 - Encountered Connection failure". Can you please let me know what could be the issue here.

Note: SLES 10 with SP2 works fine with same procedure.

Thanks & Regards,
Ramu