i finally got a new firmware for dlink dir-816l rev b1 that support vlan and have port forwarding
Gratzie What firmware version is it again? I was going to pull up
release notes to see exactly what the bug was. Is VLAN 600 a added feature on DIR-816LB that was standard on DIR-816LA? Is it EU/AS only firmware? Just trying to define the solution in case someone else has the problem.
Also, I found
this blog of someone also in Malaysia with your same router, who got VLAN 600 to work. Hopefully it may be helpful for any additional problems.
PS. In that blog, he shows screenshot of UI for a B1 model, but the pictures clearly show the A model. Is the only difference between the models the firmware?