Is your browser up to date? If the loop continues, it’s either you are being blocked by the site and/or you have malware on your device. You tried on the mobile hotspot, did you try on a different/the mobile device?
Sorry for confusion. The Cloudflare’s “Verifying you are human” security check works on my phone using the same Wi-Fi connection, but it fails on my laptop. I’m also running a full virus scan on my laptop to see if there’s any malware