Thanks a lot. I was banging my head to the wall to try to find out what is wrong after update from 380.69_4 to 384.5. After adding "sleep 2" to my nat-start script internet is working again. Thanks again!
Add "sleep 2" to start of your script and your internet works after port forwarding as discussed below.
https://www.snbforums.com/threads/vpn-user-script-nat-start-causing-loss-of-internet-connection-merlin-384-4_2.45750/