I have this same problem referred to the question Docker pull gives expected HTTP 206 from byte range request.
I tried to pull raabf/latex-versions:latest. It has 1.89GB. I ran the command docker pull [censored-company-address]/raabf/latex-versions. I have set correctly the company proxies. I added "max-concurrent-downloads": 1. But totally unsuccessful because of errors Retrying in 1 second and expected HTTP 206 from byte range request.
Only less than 1GB, I am able to pull any Docker image.