Are you seeing a lot of debug prints that appear like the following in your device's debug logs?
"Stale or unreachable neighbors"
"Stale or Unreachable Neighbor" is a message used with Network protocol IPv6 only. Videon devices use IPv4 exclusively in their network handler.
Below is a description of the message:
All devices keep a "neighbor cache". This contains information about other devices on a network.
If a device has not been "heard of" for 30 seconds, it is considered "unreachable".
Devices have two ways to verify "reachability": from "hints" from the upper-layer protocol or from responses to Neighbor Solicitations.
An example of a "hint" is as follows, if a device is communicating via TCP, and if the receiving device acknowledges receipt of data, then "reachability" is satisfied.
"Neighbor Solicitations" are active probes to see if a neighbor is "reachable", indicated by a response.
Any communication on the network adds devices to the "neighbor cache".
If someone turns their computer off for the night, after 30 seconds, you will notice "Stale or Unreachable Neighbor" messages in your Videon device logs because there have been no Neighbor Solicitation responses from that device.