wilderness - 4:05 pm on Oct 31, 2012 (gmt 0)
1) 400 errors are not loops (i. e., 500 errors) rather denials of access.
2) the 5th and 10th lines state "deny from all", you'll need to list exceptions or change the method.
3) MS-FrontPage has been obsolete for nearly a decade. Are you running FP servers?