@Fae Just to give you an update. After the firmware upgrade, I haven't seen the reboot issue. If anything changes in the future I'll let you guys know. Thanks

@Fae How is the router connected to the network? How many WAN links and do you also TL-WR840R routers in your network? In my case, very simple setup: 2 WANs links straight to ER6020 ports....

@RenatoE @Fae , I've been facing exactly the same issue for about 4 months now. The router goes down and System Time goes back to 01/01/2018. I have to manually synchronize it with my pc clock and...