Node-Red Server Connection lost

I´ve made the meta-iot2050 Image from GitHub.

The Node-Red installation always displays a message "Lost connection to Server ..." and no flow is processed. 

At least a simple injection node does not work.

Have anyone the same problem or maybe a solution for this?

Greetings Dirk

It is connected via Ethernet. The device is connectable via ssh and ping also works fine, In my opinion everything works fine except of the node red part.

The node red frontend tries to reconnect every 60 seconds without success.

The lost connection message starts immediately after opening the node-red frontend the first time.

I´ve tried to restart several times, I also tried to delete all flows now, but the behavior is always the same.

My flow, at this moment consist of a injection node and a debug node.

[{"id":"7426d578.ea998c","type":"debug","z":"a8240d46.2e30e","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","x":720,"y":180,"wires":[]}]

Yes I deleted the flows in /root/.node-red because in the home directory there was no directories (also no hidden ones).

Maybe I should try to reinstall node-red?

Of course.

I started it manually but the behaviour is still the same.