Thx. Both settings are set correctly, but still the same problem

Thank you. I just check the settings, and they are correct. Here are they.

In port forwarding screen:

Name        Mode    Host Device      Action

IPSEC ALG  Client   Dynamic

In Advanced -> ALG screen,

The following protocols are checked: FTP, PPTP, IPSec, SIP (SIP was set by me but does not help)

THanks.