MTR doesn't tell us whether packet loss is at a destimation hop or a pass-through hop. If the latter, then it doesn't matter. That said, your final destination hop (BBC) shows 31.2%.
Anyway, we need to see a number of things:
1/
The results of PATHPING
WWW.BBC.CO.UK which differentiates between destination & pass-through packet loss.
2/
Your full modem stats, including the Operational Config, so we can see if there's a discernable cause.
3/
The Modem Event Log (not after a reboot but after the PATHPING) so we can see some history to correlate with the stats.
It needn't be a problem inside the VM network. It could be local congestion; it could be circuit noise spoiling the ping in one direction or other.