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

rt-n66u router slow speed

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#1 Silverspring



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Posted 20 February 2017 - 11:17 PM



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?


#2 giganerd


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Posted 21 February 2017 - 07:54 AM

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.

Always remember:
There's a guide to AirVPN,

Amazon IPs are not dangerous here,
running TOR exits is discouraged,

using spoilers for your logs is the proper way to heaven.
Same issues are rare! Search for solutions and if not successful open your own threads.

~ Furthermore, I propose that your paranoia is to be destroyed. ~


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