Archer C3200 will not connect to No-IP DDNS account
I am trying to connect my C3200 to my pre-existing No-IP DDNS account but it fails to log on (continuously shows "Connecting").
I logged on to my existing No-IP account and added a new hostname for the C3200, then used the No-IP user login email, account password and domain name chosen to try to log on. It failed. This is the same configuration as I use on a different company's router (a Netgear) that works perfectly.
I tried using the No-IP user account name, it failed. I tried creating a second hostname, under a different No-IP domain, for the C3200. That failed too.
I have tried every possible combination of No-IP user email, No-IP user account name, (2) different No-IP hostnames, it will never connect.
I updated to the newest firmware, 170707, no change.
Any ideas?
Thank you in advance.