problem with reverse proxy

[Darkmagister]

Hello,
i'm using the reverse proxy function for few services behind docker
i've sets those up in ADM as:
cloud.domain.it:446
radarr.domain.it:446
etc.

i have to use 446 because ADM does't let me use the 443 port even if i have disabled the https port for the built in web server, so i have 446 set up
then in the modem i have the DMZ device set to the internal router, and there i have the port open for the NAS, with 443 to 446 to the NAS

this is working ok if i try to connect from the Internet

but if i am connected to the reverse proxy from inside the LAN (on the router, there is nothing from modem to router) i got redirected to the login page of the modem.
and i don't understand why, so i have also tried to redirect the cloud.domain.it to the NAS lan ip with the DNS server in the lan, but still in this case i didn't get redirect from 446 to 443 i got the nas to reply not the reverse proxy

EDIT: after removing all the disable virtual host in the ADM web server i was able to set reverse proxy as 443, but still this didn't solve the issue, but it also stop what was woring before

any suggestion on how i can fix that?

thanks

[Nazar78]

This is your router's limitations. It doesn't know how to handle virtual host requests internally. So within the LAN if you request the router's default admin port i.e. 80 or 443 via your DDNS it will redirect you back to the router admin page instead of the reverse proxy. Check your router if it can modify hostnames then point your DDNS to the reverse proxy IP.