Thanks. Looks like I spoke too soon about connection issues. While my internet connection was still up, looks like my Ubiquiti router flagged an event as possible malware and caused the disconnect from the instance server. For folks with similar issues see these links
https://community.ui.com/questions/World-of-Warcraft-provokes-a-Threat-Management-Alert-1-A-Network-Trojan-was-Detected-Signature-ET-T/f2dd658b-6c98-4772-b374-85a006b46f69
I don’t have a solution yet, but will be working on it.