Cannot login on HTTP, but can on HTTPS, with FQDN

I recently set the option back to HTTP login instead of HTTPS.
Figuring since it's only home use, and no access from the WAN, and only a signed certificate I might as well revert to HTTP and not get the message about the certificate not being alright.

With HTTPS I can login with the FQDN (pfsense.weust.local) whereas with HTTP I can't.
I can then only login with the IP address.

I tried switched it back and forth, but it just won't let me access the webconfigurator on HTTP.
Using SSH with the FQDN does work.

What could I be missing? Rules all seem ok to me. Nothing blocking port 80.
Default rules for LAN are there.

Problem isn't with pfSense, but the desktop.
On the iPad i can open the webpage fine.

This topic can be closed and/or removed.