WordPress site health showing REST API error

I am making a simple local wordpress website. When i go to site health. I have this Fatal problem:

Error in REST API:

An error occurred when testing the REST API:

REST API Endpoint: http://192.168.1.100:5000/blog/wp-json/wp/v2/types/post?context=edit

REST API Response: (http_request_failed) cURL error 28: Operation timed out after 10014 milliseconds with 0 bytes received

I already tried:

• disable all plugins
• check other REST Endpoints and it works fine:
  • http://192.168.1.100:5000/blog/wp-json/wp/v2/posts
  • http://192.168.1.100:5000/blog/wp-json/wp/v2/users

But still the error wont go away. How can I solve this.