Why are the nodes offline all of a sudden?

[Alexey]

Then check every point from this list (docker):

My Node is OFFLINE for 2 hours

It should connect in seconds. There are a few things you should check. Start with checking the port. On https://www.yougetsignal.com/tools/open-ports/?port=28967 you can fill in the domain or IP you are using in the run command. Then check the port. If it’s closed, it could still be several things. Make sure the WAN IP you see in your router settings matches the IP shown on the above page. Make sure your port forward is set up correctly. That means no filter on incoming IPs, forwarding to th…

or

Performing bandwidth usage rollups

Then lets check everything together: ok, let check it together. WAN IP on the main page of the router. Please, compare it with IP there: https://www.yougetsignal.com/tools/open-ports/ , they should match Local IP in the port forwarding rule, it should be the same as IP of your PC with storagenode nslookup your.ddns.address 8.8.8.8 should return the same IP as p.1 If you do not have a DDNS hostname, it’s time to create it: Step 3. Setup Port Forwarding - Storj Node Operator Docs Firewall. …

in case of Windows GUI.
It’s also worth to check your logs for the fatal errors: How do I check my logs? - Storj Docs