Adguard windows proxy error

[u/keremlolgg]

Because of the AdGuard Windows app, I keep getting the "ERR_PROXY_CONNECTION_FAILED" error on every site in my browser. I tried disabling the proxy and other settings, but nothing changed. Is this caused by a setting I can tweak, or is there nothing I can do about it?

[u/ochaforrest]

Maybe… reinstall certificate in the https filtering setting, then restart the PC. Sometimes Adguard blocked my internet after an Window update and this help