OPNSense web UI stops response while using fiddler

[sairfan1]

I install OPNSense with all default setting, LAN IPs 192.168.1.1 to access web UI,

To see some network traffic on local computer if I load fiddler OPNSense stop responding in the browser, but when I close the opened fiddler instance right after opnsense start working again, what could be the reason?

[cookiemonster]

I've not used fiddler in a very long time but I remember it created a network proxy on the machine it runs on.
It's just settings to fix in fiddler.