Access Pfsense website GUI and another website slowly when block port 443

[dinhhaiduong]

Hi guys,
first, I sorry about my English if I write wrong something.
I'm running Pfsense 2.4.4 and everything is working well about website when I open https (443) port.
But when I disable or create rule block https (443) port, my Pfsense website GUI run slowly, it need 10-15s to change page or apply rule.
Then, I create rule allow to access some website by Alias but when I access to website It take 20-30s to show contents but not fully and contents miss some picture.
Everything is normal when I re-open https(443) port.
So, can you explain to me guys ?

[stephenw10]

Where are you applying the block rule? Can we see a screenshot?

Some parts of the GUI can be a lot slower if they have no upstream connectivity on port 443. But that would require an outbound rule on WAN.

Steve

[dinhhaiduong]

Thanks for your feedback

I create all rule on my LAN
Actualy, I Just disable or remove the rule which is opening 443 port, you can see it's in opening status below.

Then I create a Alias host 24h (the website I want to access) then create allow rule:

Pfsense GUI website and the website which I allow to access run very slowly.

[stephenw10]

What other rules do you have on the LAN?

Is the GUI running on port 443?

Do you see blocked traffic in the firewall log after disabling the rule?

Steve