Netflix often blocks access from VPN servers worldwide in order to protect their copyrighted content from illegal viewers from other countries. Roqos VPN service may also get blocked as a result. You can exclude the internet traffic of specific devices on your network from going over the VPN Out connection to work around this issue.
Under the VPN section of the Roqos Home app, select "VPN Out" option and then "Included Devices". Make sure "Include selected devices" option is selected. From the list of available devices, disable the toggle for the devices you wish to exclude. When done, tap on Save.