Your problem is
0.0.0.0 0.0.0.0 10.0.3.1 10.0.3.27 10 0.0.0.0 0.0.0.0 192.168.2.1 192.168.2.39 25
This means all traffic that isn't handled by another route gets routed to both gateways, the lower metric first, in this case 10.0.3.1.
To route all traffic through your 192.168.2.1 gateway, open a command prompt as administrator and run
route delete 0.0.0.0 route add 0.0.0.0 MASK 0.0.0.0 192.168.2.1 IF 13