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OpenVPN Internet Speed around 22Mbps - normally +100Mbps, Why?

Posted March 9, 2018 1.9k views
VPNUbuntu 16.04

Hi,

I’ve used OpenVPN before on my droplet without any issue (fast internet connection).
However, since my old computer crashed I bought a new one and I set up exactly the same VPN in this machine, but for some reason the internet speed is awfully slow. Basically nothing changed but my computer, even OS is exactly the same (ubuntu 16.04 LTS)

Is there anything I could try to fix this slow connection problem?
I don’t think the problem is in the droplet because that would not make any sense, since the droplet have been untouched the whole time. So I’m assuming that the problem occurs because of my new computer settings/drivers or something along those lines, is that possible? And if so, where you suggest me to start investigate this issue?

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devdev
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  • devdev March 9, 2018
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    The very weird thing is that the very first internet action works normally, for example, a google search, but after a couple of seconds it slows down drastically.

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devdev March 9, 2018
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gc948486cbc56b8 March 10, 2018

You could try ifconfig (or similar if you aren’t running linux) and look for errors. More overkill, you could run wireshark. My guess is retransmitted packets due to who knows what.

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  • devdev March 10, 2018

    Hi, thanks for your reply.
    I solved my issue by reconfiguring my client settings.
    My client machine is ubuntu and I needed to add these settings:

    script-security 2
up /etc/openvpn/update-resolv-conf
down /etc/openvpn/update-resolv-conf

    For some reason, I missed that since I did not set up my VPN manually. At first, I did but recently moved to using a script instead, because VPN set up throw weird errors.

    Weirdly enough, speed test still shows me that I’d have 23.40Mbsp even that my connection works smoothly now.

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