I have been using this router for a couple of months and I've noticed something funky recently. I decided to make use of the ISP provided static IP to host stuff. I was also able to register a free dns alias on sites like noip and dyndns. The registered dynamic DNS only works for a couple of hours or days sometimes if I'm lucky after which it fails to resolve to the ip. Then I tried with the IP only to get to my server and that worked for a couple of days too before the IP refreshed.
I believe there are some TTL setting of some sort or the router is refreshing its connection to the ISP causing the IP to change frequently. I could not really find any information online pertaining to this issue.
I would like to keep my ISP provided static ip forever so I could do some hosting!!!