Alright, even explicitly forcing TLSv1.2 is getting smacked down here, meaning Cloudflare is fully rejecting connections from your host. This isn’t just some OpenSSL quirk—it’s a server-side filter in play.
Final Debugging Step:
Let’s completely sidestep the SSL drama and test whether it’s a geographic/network/routing issue. Use a VPN to re-route traffic and retry the connection, or—if a VPN isn’t an option—we can test network-level troubleshooting:
Option 1: Test with curl through a proxy
If you have access to a proxy server or VPN on a different network, set it up:
curl -v --proxy http://proxyserver:port https://cdn-repo.c7rs.com
Option 2: Trace the route
Check if anything in the way (firewalls, ISP throttling) is causing interference:
traceroute cdn-repo.c7rs.com
Alternatively—
If using a VPN resolves the issue (likely should), then you can re-run the AMP install script via the VPN. Let me know what comes of this! 
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