Port forwarding with Eero 6 router

[existing]

Hi all, I am attempting to open and forward ports (51820, 80, 443) from my Eero 6 router to a device. I have set this up on the Eero app including adding IPv6 firewall rules, trialled turning IPv6 off, and confirmed my device firewall is not blocking incoming connections to these ports, however, the ports are still not open (e.g. per portchecker.co). I would be grateful for advice to solve this issue, thank you.

[KeithFrench]

Please, can you PM me (to preserve your privacy) screenshots from your eero for the port forwarding so I can check them for you? What sort of device are you trying to forward these ports to? I have certainly had TCP ports 80 & 443 open many times.

The information below is provided by TalkTalk, for confirmation, please contact @Debbie-TalkTalk or @Lorrainef.

KeithFrench is one of our valued Community Stars and can help with a range of issues related to wireless and networking. At times, he may ask you to send him test results via a Private Message to help analyse/diagnose an issue. Although Keith does not work for TalkTalk, he very kindly shares his time and knowledge to help others.

If you need further help or if we need to take any details such as personal information about your account like phone numbers, account numbers, etc, one of the TalkTalk team will jump in and help out.