@steveits Yup. Unfortunately RealTek holds a huge market share for NIC chips, including in embedded devices and IT appliances, and in my case, the integrated NICs on the motherboard I'm using. Hard to avoid, therefore perhaps should be better supported in FreeBSD.
I'm no stranger to FreeBSD and they are notorious for seemingly arbitrary and sudden driver breakages after updates and I'm not entirely convinced the problem wouldn't happen to Intel one day either. Unless they've decided that's the only card they test - which would be short sighted. Too bad this has to run on FreeBSD and not Linux but I do understand why.