IP2M-841B DDNS suddenly not working in iOS app (Amcrest View)

[iAMmeStyle]

I've bought the camera just for few months and it kept giving me headache.

There were some crazy issue to cut off my internet every 24 hours and finally I fixed it by manually setting the DNS to google DNS. After this last issue I resolved, everything had worked properly for one or 2 months. However, a new issue just has started like 3 months ago.

I have my DDNS setup correctly and have been using it with IP2M-841B for a while. Port forwarding and DDNS all have the correct information. I can connect to the camera from anywhere via any internet browser. However, like 3 months ago, the iOS app Amcrest View just stops working with DDNS. Always return failed to connect. I believe they broke the app by an update. I don't believe I am the only one has the issue. However, I haven't seen any updated information about this bug from Amcrest and I have contacted the support and seems like they have no idea about the issue. I still can use P2P to view BTW.