"Networking update" make the connections stale on some routers

[bchamagne]

A node (node X) is considered offline by its peers even though he is running.
It happens because all other nodes are connected to it with "stale" connections.

In brief, when a node connect to node X, the connection is working and everything is good. But within 5 minutes, node X will trigger a "networking update". On node X (this is the first time we experience this), the "networking update" will leave the connections open but make them all stale (will not receive anything, and will send into the void). Everything will timeout.

On the screenshots we can see that connection is working until the "networking update" :

2 proposed solutions:

• "networking update" also kills the connections
• kill connection on timeout