We have using r720 in our school and it has connected to every computer and smart board in here. Last day electricity has some problem and come and go few times now i can't ping or connect from remote desktop to server, but users and computers still working on through active directory in this server.
I could try to reach server from SSH but still can't answer, what should i do know ? Anyone has suggestions ?
If you have local access to the server I would start by running a racadm racreset command to restart the iDrac in the server and hopefully allow access remotely. Have you restarted the server since the outage as well? Also, are there any errors, or amber lights, being displayed from the server? If so, what are they?