Some clients have troubles while connecting my site.
126.96.36.199 and 188.8.131.52 as sample receive network timeout by OS, not any pages of Cloudflare. User in 184.108.40.206 network ask your friends in the same provider, and they can’t connect too…
I asked clients to diagnose, but they not network specialists. Ping my site olegon.ru resolved it to 220.127.116.11 and 18.104.22.168, but can’t connect it in all browsers and by mobile device.
telnet olegon.ru 443 and telnet 22.214.171.124 443 hangs by network timeout too, but works very well on some other sites from the same host.
most of other clients connects without any problem and run telnet command above with succesful connection.
I whitelisted 126.96.36.199, but without success.
Is any hidden blacklist of IP? Is all normal blacklisted receive block page without simple blocking (such as drop packet)? How to unban this networks?