Enabling issue with 22, 80 and 443 ports @AC2300 router
I recently bought a NAS, and I have some issues during set-up which cannot solve. I did the set-up first with a colleague while QNAP was connected to an AC1200. To enable ports from NAS went just fine. But when I've put the device to final place, I have connected to my Archer C2300 router. When tried to enable the ports, 3 of them didn't work: 22, 80 and 443.
I watched some videos about it, and fixed the IP in DHCP Server menu. After as advised I went to NAT Forwarding -> Virtual Servers, and added the 3 ports manually, but I have still Error messages for these 3.
No idea any more. Do you have any suggestion what to do/enable/disable/tick/add/remove? Thanks.