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Mapped Drives loose connection accross VPN - Win2003 Firebox700

Posted on 2008-10-23
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I have a Windows XP laptop that connects across a VPN directly to a SBS 2003 SP2 server.  The firewall is a watchguard X700 which allows the vpn the pass through.

After the user logins into the laptop and connects to the vpn the mapped drives work earlier in the day.  Then after a certain amount of time the mapped drives are still visible and the status shows connected but when they open any of the drives they are blank.  No folders or files.  A reboot sometime fixes the issue but not always.

I have seen this happen from within the main office where the server is but it is very rare.  So this tells me it is not a firewall issue.  It seems to continuously happen on the laptops that are connecting through the vpn.
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Question by:Akabulla
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by:Rob Williams
ID: 22787675
It can happen if power management is enabled on the PC's network adapter (under device manager), however usually when you click on them there is a delay and then after a few seconds they reconnect. Perhaps check that setting regardless, as a long shot.

Is "keep alive" enabled on the VPN connection?
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by:Akabulla
ID: 22787810
That is a great idea!  I will take a look at the power management options.  It is a Lenovo and they love their power management utilities!

Where is the setting for the keepalive.  Is that client or server side?

Thanks!
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by:Rob Williams
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Yes I agree Lenovo does have numerous power options. The one I was thinking of is device manager | NIC properties | power management | "allow the computer to turn of this device to save power"

>>"Where is the setting for the keepalive."
Good question. It is on the router config in a site to site connection. I would imagine it is in the Watchguard client in this situation, but I haven't used that client for a couple of years, I can't remember. It is usually present, but not always. It basically does an occasional ping.
If it is not an option and you thing that might be the issue you could install something like IPMonitor/NetGong to do an occasional ping (30 days free).
http://netgong.tsarfin.com/download.html
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by:Akabulla
ID: 22790196
The VPN is connecting to the SBS Server.  It is not using the watchguard firewall.  I will try the power management option and let you know!
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Rob Williams earned 500 total points
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Sorry, I was assuming. There is no keep alive option on the windows VPN client.
Which client are you using, the standard windows client or the Small Business Server client? You should be using the latter. If it is called Small Business Connection Manager you have the right one. If not you may want to review the proper SBS configuration method for server and client:
http://www.lan-2-wan.com/SBS-VPN-instr.htm

However, with both if you right click on the client, under network connections and choose properties, both have an options section that allows you to set the idle time out and reconnection options. You could set the time out to 8 or more hours. That may help.
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by:Rob Williams
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Thanks Akabulla.
Cheers !
--Rob
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