[vpn-help] Windows 7 64bit Slow VPN

Mark A. DeMichele demi at intellipro.com
Thu Jan 19 08:25:58 CST 2012


I don't believe  you for being skeptical.  I'm a programmer and I
understand where you're coming from.

I just did as you requested and was very methodical about it.  Here's
what I did.

1. Using the 2.2beta2 version, I uploaded using a VPN address and then
again with a public address outside the VPN.
	VPN Upload Speed: ~450KB/sec.
	Non-VPN Upload Speed: ~550KB/sec

2. I uninstalled 2.2beta version and installed 2.1.7.  I used the same
profile  (it's nice it remembers all that between uninstalls and
installs BTW). Same urls and same files to upload.
	VPN Upload Speed: ~12KB/sec.
	Non-VPN Upload Speed: ~550KB/sec.

The higher rates vary a lot +/- 50KB/sec., but the slow VPN rate is just
pretty slow.

I had tried 2.1.6 the other day with the same result.  I hadn't gone
back any further since the 2.2 fixed the problem.  Also both of my
Windows 7 64 bit machines seem to have this problem. Maybe it's router
related?

I have a Belkin N600HD router.  

   Hardware	F7D8301 v1
   Firmware	1.00.30 (Dec 24 2010)
   Boot Loader	1.08e

-----Original Message-----
From: vpn-help-bounces at lists.shrew.net
[mailto:vpn-help-bounces at lists.shrew.net] On Behalf Of Kevin VPN
Sent: Wednesday, January 18, 2012 8:37 PM
To: vpn-help at lists.shrew.net
Subject: Re: [vpn-help] Windows 7 64bit Slow VPN

On 01/18/2012 11:45 AM, Mark A. DeMichele wrote:
> I have an update on this.  For the heck of it, I installed version 
> 2.2.0-beta2.  That seemed to fix it, or at least made it much better.
>
> I now get about 400KB/sec from both 64bit machines.
>
>
> From: vpn-help-bounces at lists.shrew.net 
> [mailto:vpn-help-bounces at lists.shrew.net] On Behalf Of Mark A. 
> DeMichele
> Sent: Wednesday, January 18, 2012 10:13 AM
> To: vpn-help at lists.shrew.net
> Subject: [vpn-help] Windows 7 64bit Slow VPN
>
>
>
> I realized that my upload speeds to my office over our VPN were very 
> slow so I started digging into it.  At the office we have a Netscreen 
> 10 hosting our VPN connections.  On one of the servers at the office 
> we have a nice HTTP based file server that I can  access remotely 
> using a public IP address (no vpn) and a local IP address (vpn), and 
> when uploading it displays KB/Sec. This gives me the ability to 
> compare upload speeds.
>
> Also, at my remote site (home - Comcast cable), I have several 
> different machines behind the same router running different OS's.  
> These are the machines.
>
> Two  Windows 7 64 bit machines
> One Windows 7 32 bit machine
> One Windows Vista 32bit machine
>
> All the machines have Shrewsoft 2.1.7 installed using the same config.
>
> I tested all them without the VPN and they all uploaded at about 
> 550-600KB/sec.
>
> On the Window Vista 32bit machine, I tried both Shrewsoft and my 
> original Netscreen client.  They both performed ok at about 
> 450-500KB/sec.  (Slower than without VPN, but I guess that's
expected).
>
> Same results as above on the Windows 7 32 bit machine.
>
> However, on both the Windows 7 64bit machines, I'm only getting about 
> 12KB/sec which is painfully slow.
>
> A co-worker at another remote location using Windows 7-64bit and 
> Shrewsoft 2.1.6 can upload at about 550KB/sec.  I uninstalled my  
> 2.1.7 version and installed 2.1.6, but I get the same results, so I 
> don't think it's 2.1.7.
>
> Can anyone give me some pointers on where to look to figure out why 
> it's so slow.
>

Thanks for the update Mark.  I'm glad it's working faster now, but I'm
not sure why.  I don't recall anyone complaining about performance of
2.1.x on Win7-64bit on the list before now.  Are you interested in
downgrading to 2.1.x on one of those machines to see if the performance
problem re-occurs?
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