Okay, this is going to sound really entry-level but...I am, so apologies for coming in so naive.
I was asked to figure out why our network engineer can't log into devices using NCM. He granted access through the firewall for SSH but trying to connect to the nodes themselves causes the system to error out every time, even with valid credentials. I tried a couple of logins myself but none of them were accepted either (including logging into Solarwinds itself via NCM). Clicking "Test" either errors out or times out but never establishes a connection.
What, besides firewall permissions, do you need to have preconfigured on the endpoint in order for NCM to communicate and manage a device? I feel like we're missing something really obvious but it isn't coming together for me. Solarwinds NCM doesn't throw an error on attempt to explain what is off about the login so I don't know what the device is kicking back, if it even is.
Apologies for vagueness, I'm just kind of confused. Any direction forward would be helpful right now.