[blue68f100]

If iSCSI was working I would double check the link, remove and add it back in. It sounds like your network configuration changed.

For shell access you need to make sure the SSH is turned on.

"ssh admin@ipaddress" , enter password when prompted.
"osshell" ,
"su root" your now in.

Work with caution you can do a lot of damage quickly with the wrong commands. These cmds work for v5, On v3 once you ssh you were ready to go, v4 they changed a few things to make it more difficult for the casual user to gain access. Now these are not setup like a desktop Linux box. So you may want to snoop around a bit before making any changes so your familiar with the different layout.