It may be down to the security settings your hub is using. I can't recall which is which but you need to check that your hub is using the correct one.
Just found this;
http://support.volvocars.com/uk/cars...a801516278a0ba
Wi-Fi technologies and security
Possible network types to connect to.
It is only possible to connect to the following types of network:
Frequency — 2.4 or 5 GHz.
Standards — 802.11 a/b/g/n.
Security type - WPA2-AES-CCMP.
If that makes sense to you then good luck !
I found I had to reset my BT home hub to get the car to connect to the wifi and then actually be able to connect to the internet.