VPN Slowness

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Using a default install of RAS, here is what we get:

Transfer #1
test.mp3 100% 10MB 318.6KB/s 00:33

Transfer #2
test.mp3 23% 2508KB 4.57KB/s 10:01

(I killed the second transfer after 10 minutes, you get the idea)


The connection in transfer #2 goes stalled randomly and then picks back up. Before you answer “your link speed is to blame” please note that the above proves this is not the case. Transfer #1 & #2 are connections between the same two computers, the only difference being, #2 is after connecting to the VPN. Transfer #1 is straight across the ‘net with no VPN. This shows that clearly, the link is not to blame or they would both be the very slow speed.

That being said, where should I be looking on the VPN server? It’s a Windows 2003 Standard Edition box with all updates applied. The following are open on our cisco:

permit udp any host x.x.x.x eq 1723
permit tcp any host x.x.x.x eq 1701
permit udp any host x.x.x.x eq 1701
permit tcp any host x.x.x.x eq 1723
permit gre any host x.x.x.x

I can replicate this scenario with windows, mac, and from any location I have been to and tested (hotels, various homes, other offices...). I am at a total loss. Thanks in advance.


DP
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Relevant Pages

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  • Re: VPN Slowness
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