NetComrade wrote No. I am not going to risk bricking the router. What I've been doing for almost a month is running this script daily at 7.30am with a cron on a linux server. So the router is...

So, have you installed the Beta Firmware for v4 in a v3? And worked? NetComrade wrote +1 with V3. Support wasn't helpful. Getting rid of DDNS is not an easy option for me..