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OpenVPN Speed limitation to only 10 mbps

Posted on 2016-11-22
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Last Modified: 2018-02-06
Hy Guys!

I use OpenVPN server integrated to ASUS RT-N65U wireless home router, the server works with these parameters:
1) Encapsulation Layer - L3 TUN
2) Protocol TCP
3) Enabled LZO for Data Compression

My client is the latest official 64-bit OpenVPN client (v. 2.3.13-I001) that creates virtual TAP adapter V9 in Windows 7 x64 OS
(no matter what version of windows or OpenVPN client I use, the result is always the same)

And the issue is that I have only 10 mbps.

Please explain what do I wrong
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Question by:adroman
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Accepted Solution

by:
masnrock earned 2000 total points
ID: 41897650
You're doing nothing wrong, that's literally the limitation of the TAP adapter. Until it gets updated and is able to handle speed, there isn't anything to be done.
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Author Comment

by:adroman
ID: 41898437
Excuse me, I just want to clarify - no matter what version or configuration of OpenVPN server, if I use windows client I will always have only 10 mbps? :)
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LVL 33

Expert Comment

by:masnrock
ID: 41898445
Exactly. It is purely a developer issue, not a user one. There isn't anything you can do short of trying another VPN.
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Author Comment

by:adroman
ID: 41899017
Thank you for bitter truth, maybe you know would this limitation occur if I migrate to linux OpenVPN client? Another words, this limitation concern only for windows or for all operating systems?
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LVL 33

Expert Comment

by:masnrock
ID: 41899115
You should be able to achieve higher speeds in Linux, even though you may not achieve top speeds. This is basically a flaw of OpenVPN overall, but it is even worse in Windows.

Hopefully they fix this in future versions.
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Author Comment

by:adroman
ID: 41900029
screenshot from ubuntu client
-2016-11-24-04_58_29-Ubuntu-64-bit--.png
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Author Closing Comment

by:adroman
ID: 41900030
Thank you very much, you're right.
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