Sharepoint 2010 Health Monitor

I have an HTTP GET health monitor setup for our Sharepoint 2010 servers. The health montior seems to work as I am seeing 200s come back from the server after authentication. However, what I'm also seeing is the health monitor sending along several GETs without the NTLM credentials and those come back with 401 authentication errors: Logs from Sharepoint server...top two are not successful as the LTM did not send along the credentials of PPL\spsearchqa. Bottom two are successful with the creds:

2015-04-24 13:48:04 xxx.xxx.xxx.xxx GET /sitepages/Home.aspx - 80 - xxx.xxx.xxx.xxx Mozilla/5.0+(Windows+NT+5.1;+rv:2.0.1)+Gecko/20100101+Firefox/4.0.1 401 2 5 5
2015-04-24 13:48:04 xxx.xxx.xxx.xxx GET /sitepages/Home.aspx - 80 - xxx.xxx.xxx.xxx Mozilla/5.0+(Windows+NT+5.1;+rv:2.0.1)+Gecko/20100101+Firefox/4.0.1 401 1 2148074254 5
2015-04-24 13:48:08 xxx.xxx.xxx.xxx GET /sitepages/Home.aspx - 80 PPL\spsearchqa xxx.xxx.xxx.xxx Mozilla/5.0+(Windows+NT+5.1;+rv:2.0.1)+Gecko/20100101+Firefox/4.0.1 200 0 64 12045
2015-04-24 13:48:14 xxx.xxx.xxx.xxx GET /sitepages/Home.aspx - 80 PPL\spsearchqa xxx.xxx.xxx.xxx Mozilla/5.0+(Windows+NT+5.1;+rv:2.0.1)+Gecko/20100101+Firefox/4.0.1 200 0 64 10075

Here is how my health monitor is setup:

Any help would be very much appreciated. Thank you!