Hi Hemang Thanks for reply. I configured other HTTP-ECV monitor, now I got "failure - pattern not found in response". Below how i set up the monitor. add lb monitor test_login_http-ecv HTTP-ECV -send "GET /certsrv HTTP/1.1rnAuthorization: Basic YWRtaW5pc3RyYXRvcjpQQHNzdzByZA==rnHost: 192.168.40.10rnrn" -recv Welcome -LRTM ENABLED HTML body: