Hi today morning I found my node turn to offline. My local ip was change, so the port is closed. I try to set the ip in my os but it’s denied. so I go to my Asus router set like this, it’ work but I am not sure it is all fine.
Usually routers have an ability to assign a static IP to your PC, if you map the MAC address of the PC with the local IP.
Your current configuration of DHCP with only one IP will not allow any other device to work in your network.