I set up a mobile vpn with IPSec but from my client computer can't ping anything in my network. I don't see anything denied or allowed in traffic monitor.
If you're connecting but not getting anything through, that might mean that ESP (IP 50) packets are not connecting.
If this only happens in one location, you'll need to make sure the firewall at that location is configured to allow outbound IPSec connections.
If this isn't an option, consider using Mobile VPN with SSL instead.