Chris wrote:
You don't need to stop or remove PIA separately. In SparkBox, open Settings → Network → VPN, select Surfshark, choose the Surfshark connection details, and save. Saving the VPN configuration refreshes the Media stack so it uses the new provider. Please keep any VPN keys or passwords private—don't paste them here. If it still shows PIA after saving, reply with that result (without credentials) and I'll log it and our team is investigating.