This was a solution to the problem encountered when trying to connect to a VPN using a Smart Bro kit. There were two steps that were taken in order to solve the problem:
1. Changing the APN to internet.
2. Using a Smart Buddy sim and not a Smart Bro sim, with a balance of 2 pesos.
If you follow this configuration, you should be able to connect to any VPN of your choice.
ENJOY. :))