Slow download/upload speed over VPN

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Feb 3rd, 2009
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Doing speed tests from without going through the VPN Client I get roughly 31000kbps / 3500 kbps down/up. VPN connected I roughly get 1500kbps / 1000 kbps. Any ideas why download speeds dramatically drops? I know encryption taxes a part on overhead and I am using 3DES, but ~95% decrease?!? Any thoughts?!?

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Joseph W. Doherty Tue, 02/03/2009 - 12:47
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IP fragmentation, if happening, can hit performance. Encryption too, if done in software.

ronbuchalski Thu, 05/14/2009 - 12:42
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When you connect via VPN, you will be using the internet gateway at the VPN location to reach Does that location have a T1 to the internet?



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