24 years after the upgrade to a whole-house 2.5G (HSGQ's 2.5G optical cat + BE6500 Pro + Mercury 2.5G switch), it has been used for half a year and is still relatively stable. However, recently, I have frequently found that the NAS and home devices will disconnect from the network. The problem phenomenon is that it automatically restarts 1-2 times every day at an unpredictable time. Since I have unlocked SSH, I entered the system to view the panic log in /data/usr/log:

I suspect that the Flash is malfunctioning. After checking, I found that Jingdong's 180-day warranty only allows for replacement, not repair, so I directly applied for after-sales replacement. Waiting for updates...