Question regarding OpenVPN client performance on ASUS AC routers

[LoneWolf]

Hi all,

I've been playing around connecting to my VPN service with OpenVPN. Doing it with a Windows client on my server has excellent speeds. Doing it on my ASUS RT-AC66R brings speeds to a crawl.

I don't have that many clients, and the CPU usage on the router doesn't break 66%. I realize that more clients are connecting through the router, but still --is it the encryption? Is the RT-AC66 the bottleneck, and if so, would a router upgrade improve this?

 

[RMerlin]

Hi all,

I've been playing around connecting to my VPN service with OpenVPN. Doing it with a Windows client on my server has excellent speeds. Doing it on my ASUS RT-AC66R brings speeds to a crawl.

I don't have that many clients, and the CPU usage on the router doesn't break 66%. I realize that more clients are connecting through the router, but still --is it the encryption? Is the RT-AC66 the bottleneck, and if so, would a router upgrade improve this?

OpenVPN is very CPU intensive, especially because of the crypto.

A dual-core ARM-based router such as the AC56/AC68/AC87 will greatly improve performance (by more than a factor of 2).