Getting same here with spikes of packet loss around midnight, but also massive packet loss at other times, having been posting about it for weeks, but being ignored by VM.
Current BQM

A Previous BQM in the last few days

clearly something going on with network, engineer has been out and checked all connections, tested cabling, the Hub was replaced a few weeks ago, old WiFi extenders removed, splitters changed, he said there was nothing else he could do and said it was almost certainly a network issue.
Martin