Azure Latency every 14th Ping

Question

Just this week, I started noticing regular service interruptions one of my Azure Workstations. The most visible are freezing whilst RDP connected and regularly having remote RDP session disconnected.

Overnight, I have RDP' onto this workstation from another Azure machine (on a different V-NET) and the RDP has stayed established, but the freezing is still there.

Running a basic Ping gives these results - every 10th-14th ping shows a jump to around 2000ms. This is consistent over several hours.

Reply from 172.16.0.12: bytes=32 time=1226ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=1ms TTL=127
Reply from 172.16.0.12: bytes=32 time=8ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=1ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2387ms TTL=127
Reply from 172.16.0.12: bytes=32 time=1ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=3ms TTL=127
Reply from 172.16.0.12: bytes=32 time=1ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=4ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=4ms TTL=127
Reply from 172.16.0.12: bytes=32 time=1ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=3ms TTL=127
Reply from 172.16.0.12: bytes=32 time=1872ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127
Reply from 172.16.0.12: bytes=32 time=2ms TTL=127

Any ideas anyone?