CentOS

I'm running CentOS 7.4 on a Dell OptiPlex 7010. I've been using the on-board 1gb NIC without issue. I've now disabled the on-board NIC and added an Intel X540-T1 10gbe NIC. I then went into nmtui, removed the old connection, then assigned the static IP to the new connection and rebooted.

Ping, wget, and yum all work without issue. However I cannot ssh to or from the system. Any ideas what could be the issue?

Not much to go on. I am guessing that firewalld is running and your new interface is in a zone that does not allow ssh.

What is the output of:

I needed to get this going so I went in Saturday morning and did a clean install and everything is working on the 10gb NIC.