Nginx custom resolver returns error

Job ID: 35666292

Budget: $10 – $30 USD

I'm looking for a developer who has experience with nginx programming. Your task is to solve the following error:
"connect() failed 10049: The requested address is not valid in its context) while connecting to upstream"

A custom resolver has been implemented, it does sometimes lead to errors.
Related categories: C Programming System Admin Nginx C++ Programming