Hello, 

I received my new archer vr900 v3 today and wanted to configure port forwarding however I'm having a big trouble. 

It's partially ignoring my NAT Forwarding, which makes no sense. I'll explain. 

My network setup is like that:

VR900 --->  (192.168.1.5)pfsense(10.1.1.0/24) -----> (10.1.1.10) webserver 

This setup is working fine for couple of years. I used to have an archer vr900 v2, which died recently. I also have a BTHome Hub 6. Both worked fine. But with new v3 it doesn't port forward. Here's the nmap result when I scan internally:

PORT     STATE  SERVICE
22/tcp   open   ssh
53/tcp   open   domain
80/tcp   open   http
139/tcp  open   netbios-ssn
443/tcp  open   https
445/tcp  open   microsoft-ds
3306/tcp closed mysql
5432/tcp open   postgresql
8181/tcp open   intermapper
8443/tcp open   https-alt
 

As you can see it listens various ports including 80 and 443, which are most important. I can access all the services within the LAN. Following that I have port 80 and 443 added in NAT Forwarding -> Virtual servers, enabled. Nothing happens. I tried DMZ, still same. 

Most weird part is, if I add 8443, then it works. Also I can port forward DNS but I can't do it for 80 or 443. 

Any ideas?
Thanks!