Russianeer wroteSo I installed OpenVPN Access Server on my VPS which worked right out of the box, and I had no issues with it whatsoever other than the 2 concurrent user limit. I realized that the 2 user limit isn't going to cut it and decided to do a regular OpenVPN install, configured all of my certificates and connected to the VPN. I instantly noticed that my speed was significantly slower on the same VPS installation for OpenVPN, and Access Server was about 40% faster.
In other words, with OpenVPN I get about ~100mbps download (always stops at 100 but on average lower than that), and with Access Server I get ~140mbps. So there is about a 40% difference between the performance of the two. My question is, how can I configure the regular OpenVPN install to be as fast as the Access Server?
I suspect that the problem could lie within the win-32 tap driver, since I hear that it usually caps out at around 90mbps. However, Access Server goes well beyond 100mbps. I also noticed that OpenVPN connect was using "TAP Adapter OAS NDIS 6.0", and regular OpenVPN was using "TAP Adapter Windows v9." Could the problem lie within the difference between these 2 TAP Drivers?
It's been about a month. Have you made any progress in figuring out this issue?