jetpack42
Occasional Visitor
After reboot get the usual dialog, then this error (kernel: MACSEC: macsec is not enabled) repeating:
I can't speak to why you're losing connection, however, the MACSEC message (that you have highlighted a few times) appears for me as well but only when my client connected to the 2.5Gbps port powers on and powers off, or, if my modem connected to the 2.5Gbps WAN port somehow goes down as well.
The MACSEC message appears in stock AsusWRT as well, so I would imagine its not an issue related to Merlin and rather how ASUS has configured the 2.5Gbps/10Gbps (for other models) ports?