doc-10-b0-docs.googleusercontent.com is being Blocked by Norton DNS...
https://safeweb.norton.com/report/show?url=doc-10-b0-docs.googleusercontent.com
Exact same situation as from this post: https://community.norton.com/en/forums/google-drive-sub-site-being-blocked-norton-dns-doc-0c-20-docsgoogleusercontentcom