An SD-WAN Edge may randomly go offline showing "Edge Down" events in the VCO after receiving a control plane update that assigns it to a new gateway.
There was an issue discovered on gateways running 6.0.0 code, issue 150247, which was causing the gateway to sometimes use the wrong IP for NAT as it sends traffic out to the internet. This resulted in some edges having issues sending traffic out to the internet, making them intermittently lose communication with the VCO.
The affected gateways have been upgraded to fix this issue.