my router (ASUS RT-N56U) is using 2.4.1.4m firmware, everything is working well except DDNS, it won't update automatically and it has weird selection as well "WWW.DYNDNS.ORG", "WWW.DYNDNS.ORG(CUSTOM)" and "WWW.DYNDNS.ORG(STATIC). i tried all 3 ans it still won't update automatically, does any1 know what problem is this and the solution for it?

every time my router restart i have to update the DDNS manually and it is getting annoying, another weird problem with my router is after some time (maybe weeks? not sure exactly how long) i can't access into router page unless i force restart.