Config issue - A rec + DNS - help please

Have configured a A-record as below :
NAS.domain.com:xx96 - Have setup forwarding rules on the Router+switch to redirect to the correct device (Host1) within the LAN. The secure page is open. No issues.

Have a second A record :
Myapp.domain.com:XX98 - Have setup forwarding rules on the Router+switch to redirect to the correct device (Host2) within the LAN. The secure page DOES NOT open.

The WAN IPs are the same. Depending on the port, I redirect to different hosts with in the LAN. The App can be accessed from the internet by MyWANIP:XX98 . This works perfectly fine.

However, when I use the sub-domain A-rec created , doesn’t.

Am I doing something totally incorrect ?

Lig

DNS “A” records can not have port numbers in them.

And I bet the ports you’re trying to use aren’t included in this list (at least one of them definitely isn’t):

Thanks.Got it sorted. Changed to one of the recognised SSL ports.I had used 10443 - not in list.

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