Hi, When you said that you tried the laptop at a starbucks does that mean that the vpn connection was successful from the starbucks, but not from your wireless network at home? Or are you just mentioning that the laptop does in fact work properly?
If you were able to establish a VPN from starbucks then maybe your router will not allow wireless connections from what it sees as the internal network, since you would be connecting wirelessly from your network at home. While from starbucks you would be given an outside address once you left their private network.
If the VPN wasn’t established from starbucks and you were just mentioning that the laptop works, then their might be a setting on your router that you’re connecting to in which wireless connections are refused or a wireless client is denied access to manage the router or establish VPN connections. I think i’ve seen settings like that on a netgear wireless vpn router before, I’m not as familiar with the linksys web interface pages.
Check to see if there are security restrictions based on an internal network address, or originating from the internal network, etc.
I’m almost positive that you’ve already checked this, but I’m going to mention it anyway just in case. Are you certain that your wireless network is up and running, so you can get online in your wireless network with that laptop?
I hope that some of this information might point you in the right direction, I’m subscribing for updates to your issue in case I can be of assistance.
Here is another suggestion that worked for me when I ran into the same problem on my home network. I had to clone the MAC of my pc’s NIC into the router configuration of the linksys router. My ISP only allowed one connection and it was based on the MAC address of the NIC they set it up for. Once I cloned that to the router any computer I used thereafter could connect. Sounds suspiciously like you have the same problem. There is a page in the linksys router configuration which allows you to clone the MAC address of your NIC.
I was able to get this issue resolved by flashing my firmware with DD-WRT.
It looks like linksys does not like the VPN pass through.
Thanks for you help and time