Dell T320 iDRAC7, no signal (after assigning AD role to the server)

Hello dear friends,

I have two servers, one R320 and one T320 both running server2008R2 Sp1. I have been using iDRAC for quite a long time now, preferably with VNC viewer plus.

This week I had to assign Domain Controller (Active Directory role) to the T320. Before that I took a full backup with the boot disc of the backup software. All was done over iDRAC.

After creating the AD role I noticed that I can no longer work with iDRAC, as I get the no signal screen.

I have tried any other way, visiting iDRAC over https and try ruiing it over java or html5 but no luck.

I am atatching some screenshots in case you may be able to help me.

Thanks in  advance.