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Slow speeds using Asus RT-N66U UDP or TCP .ovpn

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I'm using a Asus rt-n66u router for a while with OpenVPN on port 433. Since speeds are not good, I played with settings / multiple configs to get better speeds but so far those efforts failed.


I have a Ziggo ISP account that allows a max speed of 150 Mbps down.

On my laptop (Wifi) without vpn I get speeds around 50 to 65 Mbps.

When I use AirVPN via the Asus rt-n66u router, I get speeds around < 10 Mbps down and equal up.


I've used the https://airvpn.org/asuswrt/ howto page, so uploading the .ovpn file into the router. Currently I run latest Merlin 380.65 firmware. I also used lower versions of Merlins firmware, which did not cause change in behaviour.


I've puzzled a lot to get the config on higher speeds but it does not matter if I use UDP or TCP and / or  change ports. Tried them all. I used the AirVPN generator set to router, country set to Netherlands and as described using either UDP or TCP trying multiple ports.


I can understand that vpn causes overhead in traffic but dropping down to 10 Mbps is a bit too much.


What can I do to speed things up?


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What can I do to speed things up?


Don't use a router.

This topic has been discussed thoroughly in several threads. It's the global consensus that consumer-grade router's CPUs are not able to handle much of AES encryption/decryption, effectively decreasing the throughput.

» I am not an AirVPN team member. All opinions are my own and are not official. Refer to Staff postings for the official word.

» These are the community forums, not the support portal. You're writing with other users here.

» New here? LZ1's New User Guide to AirVPN. Use the search function, Luke!

» Tor exits behind a VPN connection are discouraged. Using Tor on the other hand is not.


» Privacy is like alcohol: Drink a little and it can help you stay unnoticed. Drink a lot and everyone will notice you.

» I cannot give you the solution to all your issues. But I can guide you to it. The rest is up to you.

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