I have tried run Parsec (https://parsecgaming.com/) Sandboxed but it can't access internet.
I have a sandbox configured to use with other programs like Steam and it works correctly. All programs get access to the internet in this sandbox except Parsec.
SBIE2205 Service not implemented: schtasks.exeSBIE2205 Service not implemented: CM Add Driver Package
Note: I'm not familiar with Parsec nor have Parsec account.