Unable to Access Web GUI from OPT1: Access Denied

[themadwizard]

Hello!

I have been having this problem literally since day one that I started using OPNSense.  It didn't matter in the past, but I am moving to a new device and some of my requirements are changing.  I have a rule set up to allow the opt1 network to access the opt1 address * * and I have two rules forwarding ports 80 and 443 to the Squid Proxy (transparent).  I have the exact same rules on my LAN interface.  On my LAN interface, I can access the firewall just fine using the LAN IP.  On OPT1, I get an Access Denied message from Squid saying that Access Control is preventing me from accessing the GUI.  I have checked every setting I can find, and I cannot find anything in the Web Proxy that would allow/prevent me from accessing the Web GUI.  I checked the Settings and the Web GUI is listening on LAN and OPT1.  I made sure that reply-to is disabled on the OPT1 firewall rule.

Does anyone have any other ideas as to why I can access the Web GUI just fine from the LAN interface, but not at all from the OPT1 interface?

[Arigion]

I had the exact same problem. Even an "allow everything" rule did not help. The only thing which made the gui accessible on OPT1 was changing its port from 443 to something else (4443 for me, still https)

(I know the question is old, but since I only found questions like this and never answers I reply anyway)