Sometimes when a computer has more than one network interface, Windows gets its routing confused on the client side. The first fix to try is a reboot.
If that doesn’t work:
We’ve seen situations where the VPN will only work correctly over Wifi or Ethernet but not both. If you have both Wifi and Ethernet, could you please try:
Disable wifi and disconnect / reconnect the VPN.
If that doesn’t work:
Enable Wifi, unplug the Ethernet cable, and disconnect / reconnect the VPN.