Took some time playing with the server between higher priorities. However, I was able to disconnect all ports but one of the embedded NOC ports. Using my device MAC roster, I was able to find narrow down what happened. Somehow, the static address was changed, so I was chasing down an IP address that was changing as I was trying to find it. Restored the static settings and can access the data again.
Greetings and Begging for Wisdom! My R420 was working fine before I shut it down to move power to a dedicated AC circuit. After reboot, the iDrac would connect but not the NIC. The last few weeks, I have tried everything I can think of to get connectivity restored. I have gone into the Lifecycle Controller countless times to verify and re-enter the settings I was using as well as trying various static, DHCP, port connections, and switch settings. The back of the server has 10 ports: 1x2 port embedded, 2x 4 port pcie cards (11 if you include the iDrac) which was a surprise. I was going to try merging ports together (Aggregating, teaming, etc), but want to learn more about what I will gain out of my setup by doing so. This server archives full PC backups (cloned drives), digital music, family video and photo archives, and surveillance video. Naturally, I am hesitant on doing something that will possibly damage the data. Sometimes in the Lifecycle Controller menu, I can see the IP address pop up on the router device list but the connectivity will go away during the remaining boot process. Using the same network settings from the iDrac (which is stable and reliable) does not function equally to the NICs.   Router settings:Device IPv4 Address146.71.28.117Subnet Mask255.255.255.0DNS Address #1104.245.248.5DNS Address #2104.245.248.6Remote Gateway Address146.71.28.1iDrac:IPv4 Enabled YesCurrent IP Address 192.168.1.195Current Subnet Mask 255.255.255.0Current Gateway 146.71.28.1DHCP Enabled NoUse DHCP to obtain DNS server addresses NoCurrent Preferred DNS Server 104.245.248.5Current Alternate DNS Server 104.245.248.6 My brain has lost network connectivity during this endeavor the last two weeks as a result!
R420 Network Connectivity