Microsoft Bitlocker Administration & Monitoring

I am wanting to host MBAM behind my LTM. I have a HTTPs Health Monitor built to look for /SelfService/Recovery/Index.

 

I am getting a HTTP 401 Unauthorized error on the LTM. I am able to browse to https:///SelfService/Recovery/Index from my workstation with no issue though.

 

What is the best Send String to use in the Health Monitor?