@Ivaylo There is already DNS 1.1.1.1 in my router LAN settings. I tried disabling Cloudflare's security. Now everything gis working fine. I think it's security was blocking some of the websites.

I have been using Ap300 for a couple of days now, and it is great. The speed, uploading, loading, and coverage is superb. But, it is of no use to me, because my blog and FB-lite (on mobile) are not...