Storm Took Out ONLY Roamio Pro's Ethernet... Need Advice

Hi, all. While it may or may not have been lightning, everything connected by Ethernet in my friend's house ceased working simultaneously during a storm. This includes a ~ 2 year old Roamio Pro with lifetime service which was set up to function as Ethernet + MoCA; two Minis then connected via MoCA.

The Roamio is fully functional other than no light at the Ethernet port of the Roamio or the corresponding port of the now-replaced router. I know it's not the cabling as other devices work...

Storm Took Out ONLY Roamio Pro's Ethernet... Need Advice

Storm Took Out ONLY Roamio Pro's Ethernet... Need Advice