Steps to reproduce: 1. Uncheck and disable every settings on the main page (optional) 2. Turn on WFP driver (OS restart may be required) 3. Go to 192.168.1.1 on a browser 4. Try clicking sign in 5. Browser will get into infinite loading, regardless the entered credential is correct or wrong. Tested devices / softwares: -Windows 10 Education 1803 -ASUS Router RT-AC88U (Firmware 126.96.36.199.384_32799) -Adguard 6.3.1399.4073 -Mozilla Firefox 62.0.3 -Google Chrome 69.0.3497.100 Workaround: -Turn off WFP driver -Uncheck the browser (used to access 192.168.1.1) from the Filtered Apps list -Exit Adguard completely I don't know exactly when this first happened as I don't usually access my router settings, but it's not like this in the past and my WFP driver has always been on. However, if this issue is linked to some websites being unable to load successfully, then I would estimate it as around 2 weeks ago. One of the websites in concern: treeofsavior.com/page/main Most of the time (like 80-90%) it will not load completely successfully, and in the case of Firefox, letting it to attempt loading for like another 10 seconds will result in the following error: Same issue - WFP driver. Upon disabling it, I have no issue with the website.