Web filtering stops working. Why?

[Fafofu]

I install "FortiClient" without a server. Install on a laptop. The laptop is connected to the Internet via "WiFi". I tried two different laptops. Installed "Windows 10 build 1903". After installation, sites are blocked. But if you restart the laptop then filtering is turned off. The forticlient service is started, and the protection status is enabled.

I tried to install "FortiClient" v5.6, v6.

Why?

PS. There is a workstation connected over a local network and there protection does not fail. :( Whyyyyyy 

[Dave_Hall]

Are you using the FortiClient for connecting to a VPN? 

Is split DNS/tunneling used on the laptop?

[Fafofu]

I use only web filtering.

I tried to reproduce the error on two old laptops, one installed Windows 7, the other Windwos 10 build 1903, and there were no problems with the program. While the problem arises on two new laptops with AMD processors ...

[Fafofu]

I checked everything I could. No software can interfere with forticlient operation. On windows 10 build 1909, on problem laptops, the problem persists. I did the diagnosis. I attach the link.

Diagnostic