Tibco apps getting dummy(Null) request from F5 in SIT environtment

Dear All,   We are continously receiving the empty or invalid request from F5 LB as seen below.   IP:10.64.46.27(VS): 46010 (Port)   2015 Mar 24 13:58:15:041 GMT +7 HCPT_Adapter_CRMAPP-CRM2_...