Hi @schach
Aww that is nasty... if it is under warranty.... send in to get it repaired.
Some countries have 36 months covered.
Had some experiences on lighting damages… especially during ADSL era… many modems were fried….
cannot detect carrier signal.
If there is no warranty left….. you need to open up and check….. hopefully is some scr being sacrificed to prevent further damage, else also need to change the controller, and misc
Interesting read..
https://incompliancemag.com/article/designing-ethernet-cable-ports-to-withstand-lightning-surges/