Please note: VyprVPN is not available in the QNAP App Center for firmware version 4.3.5 and above. If you do not see the VyprVPN app in the App Center, then it is not available for use on the model you are using.
VyprVPN for QNAP is available on x86 models running QTS 4.2.2 to 4.3.5.
Keep in mind that VPN connections rely on CPU power to process the encryption. Generally speaking, you may see better VyprVPN performance on systems with ample CPU power.
If you need any further assistance, please contact our 24/7 Customer Success Team, who would be glad to assist.