I followed / verified steps 1 and 2. How do I find out if 3 and 4 are occurring?
My Error 1000 started on my two sites 18 Oct out of the blue.
The problem may occur if any of the following conditions is true:
The IP address Cloudflare is pointing to is incorrect.
Pointing your service to another proxy in your zone file. Because Cloudflare is also a reverse proxy, enabling our proxy on a record may create a cyclic loop.
The request includes an X-Forwarded-For header over 100 characters in length
Cloudflare detects a cyclic loop - e.g. Cloudflare proxying back to Cloudflare. This is detected when your origin responds with a “cf-ray” header.