First let me say that I was impressed with Linksys device.  Nice little box for under $150.

I had some issues when I was deploying the QuickVPN client.  The QuickVPN client allows you to connect from behind other Natting firewalls or other public networks, back to your “corporate” network.  It is a piece of software that can be found at:  http://www.linksys.com/servlet/Satellite?c=L_CASupport_C2&childpagename=US%2FLayout&cid=1169671133867&pagename=Linksys%2FCommon%2FVisitorWrapper&lid=3386724130B176&displaypage=nodata#versiondetail. When I tried to connect the QuickVPN, I would get an error message saying “The remote gateway is not responding, would you like to wait.”  If you waited, it would do the same thing.  If you check the log at C:\Program Files\Linksys\Linksys QuickVPN\log.txt, you see that it is failing to ping the remote gateway’s internal IP address (not the WAN ip).

The solution?  Go to the Linksys’ website and download the latest firmware update – 1.2.11 as of this writing.  That fixed it for me!

All the best of remote computing to you,

Luke

EDIT

It seems like you have to specify a private subnet in the 10.x.x.x range on the Linksys RVS4000.  I had assigned 192.168.15.1 to the router, and I was connecting from clients that had a local IP of 192.168.1.X or 192.168.0.X.  The QuickVPN seemed to work find on the 0.X networks, but on the 1.X networks I got a popup that said that it couldn’t connect.  Changing the local subnet of the RVS4000 to 10.0.0.1 fixed all those problems….