Urgent Windows Server & Cloudflare Fix ERROR 520

I’m dealing with persistent errors and occasional crashes on my Windows Server whenever the live website and related services are under load. Each incident interrupts user sessions and sometimes blocks access to the site entirely. I need someone who can jump in quickly, pinpoint what’s going wrong at the operating-system level, and apply a reliable fix that keeps the server stable.

Once the server side is solid, I’d like you to review and fine-tune our Cloudflare setup—DNS, SSL, caching rules, firewall policies—so traffic flows smoothly and the site gains a speed and security boost without re-introducing any conflicts.

Deliverables
• Root-cause diagnosis and resolution of the current Windows Server errors/crashes
• Correct configuration of any affected roles or services (e.g., IIS, RDP, firewall)
• Cloudflare settings aligned with the repaired server (DNS records, SSL/TLS mode, cache, firewall)
• A concise hand-over report outlining what was fixed, how it was fixed, and any future maintenance tips

I can provide remote access and the relevant event logs right away, and I’m ready to test changes as you progress. Let’s get the server steady and the traffic flowing again.