I have a custom HTML page placed in two folders under my public_html folder. Folder1: BaseBallCD and Folder2:StockApp. Both folders have the same permissions yet when I try to access the page in the StockApp Folder http://stockapp.ltechconsulting.com/CreateAccount.html I get an error indicating the site cannot be reached. yet when I try to access the page in the BaseBallCD folder http://baseball.ltechconsulting.com/CreateAccount.html it works fine.
I cannot pull up either page... getting a DNS error. Since you did not mention what platform your are on, did you setup the subdomains on the server first?
Maybe this will help. 😉