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VPN slow access with XP

By HereInOz ·
We have a VPN set up between a home office and the workplace. Computer at the workplace is running Windows 2000 and carries the data files. Computers at the home office running Windows XP on one and Win2000 on the other, networked.

Work office has ADSL 1500/256, home office ADSL 256/64. WinXP machine at the home ofice is the internet gateway for the home network, running ICS and an internal ADSL Modem (PPPoE).

The question relates to the time taken to refresh folders when accessing a file folder at the work office via the VPN. If we map a drive to the data folder at the work office, the time taken for the XP machine to read the folder and actually allow you to work with it is vastly longer than if we do the same with the Win2000 machine. Also when clicking on a sub-folder, again the Win2000 machine is much slicker than the XP machine at reading the new folder, even though it is a slower machine, and is working through the XP machine for its internet connection. Copying a file from the work machine over the VPN to the XP machine seems to take for ever to even get to the point of copying, whereas the 2000 machine is pretty reasonable.

Can anyone give me a clue as to what it is that XP is doing to make itself so much slower at reading a folder over a VPN than the 2000 machine?

If you open an application (like MS WORD) on the XP machine and a open the remote folder and files that way, it doesn't seem anywhere near as bad.

Any clues, anyone? Is it something to do with prefetch? If so, can I turn prefetch off?

In hope,

Alan

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by sgt_shultz In reply to VPN slow access with XP

worth trying:
on bad xp boxes, set folder view to Windows Classic.
are you up to date with service packs on the problem boxes?
xp does a lot of stuff differently, one of the things is it trys to get more info about files and folders when it's viewing stuff so it can display info with xp bells and whistles. so you can see if that is problem by going to windows.
are you sure this is only reproducable across a vpn? what about within the lan?

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by sgt_shultz In reply to

er..that was supposed to be 'problem by going to windows *classic folder view*

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by HereInOz In reply to

Tried a few things and also a couple of other XP machines & they are all the same. Guess XP just does a lot more messing about with folders than 2000.

Looks like a case of "live with it"

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by sgt_shultz In reply to VPN slow access with XP

check out this mskb article about problems on xp clients with mapped drives to shares on w2k machines...
816375
They have a critical update to fix it and then you use the knowlegebase article to add a registry entry (sheesh). this is the only article i hit at support.microsoft.com under windows xp 'slow mapped drive'...
if it were me, i would start out t-shooting this with vanilla xp environment (no spyware, no viruses no norton system tools etc, known to be virus free (did i mention that already) and apply all current service packs and critical updates.
then if i still had the problem, i would start narrowing it down. you seem to have narrowed it down to mapped drives on xp. you could try calling microsoft. you may get free tech support on this one...

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by HereInOz In reply to

See above.

Thanks for the assistance.

Alan

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by HereInOz In reply to VPN slow access with XP

Thanks sgt_schultz, I will check out the performance with classic folder view and also the KB article.

It is difficult to know whether it happens over the lan as the transfer speeds are so much greater. Everything works fine, or at least appears to. I can access the LAN Win2000 box no problems at all, but whether it is a fundtion of lan speed or that the problem is not there, is difficult to say.

I appreciate what you mean about the XP bells and whistles - you only have to load XP on to a 300 MHz Pentium to see how slow the folder view is compared with Win2000!!

Many thanks for the assistance and I will let you know how it goes.

Cheers,

Alan

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by HereInOz In reply to VPN slow access with XP

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