diff --git a/cmd/auth-handler.go b/cmd/auth-handler.go
index c469297d9..d50367ecc 100644
--- a/cmd/auth-handler.go
+++ b/cmd/auth-handler.go
@@ -123,17 +123,9 @@ func checkRequestAuthType(r *http.Request, bucket, policyAction, region string)
 	switch reqAuthType {
 	case authTypePresignedV2, authTypeSignedV2:
 		// Signature V2 validation.
-		s3Error := isReqAuthenticatedV2(r)
-		if s3Error != ErrNone {
-			errorIf(errSignatureMismatch, "%s", dumpRequest(r))
-		}
-		return s3Error
+		return isReqAuthenticatedV2(r)
 	case authTypeSigned, authTypePresigned:
-		s3Error := isReqAuthenticated(r, region)
-		if s3Error != ErrNone {
-			errorIf(errSignatureMismatch, "%s", dumpRequest(r))
-		}
-		return s3Error
+		return isReqAuthenticated(r, region)
 	}
 
 	if reqAuthType == authTypeAnonymous && policyAction != "" {
diff --git a/cmd/object-handlers.go b/cmd/object-handlers.go
index 07daedf1a..39286cf96 100644
--- a/cmd/object-handlers.go
+++ b/cmd/object-handlers.go
@@ -640,21 +640,18 @@ func (api objectAPIHandlers) PutObjectHandler(w http.ResponseWriter, r *http.Req
 		// Initialize stream signature verifier.
 		reader, s3Err = newSignV4ChunkedReader(r)
 		if s3Err != ErrNone {
-			errorIf(errSignatureMismatch, "%s", dumpRequest(r))
 			writeErrorResponse(w, s3Err, r.URL)
 			return
 		}
 	case authTypeSignedV2, authTypePresignedV2:
 		s3Err = isReqAuthenticatedV2(r)
 		if s3Err != ErrNone {
-			errorIf(errSignatureMismatch, "%s", dumpRequest(r))
 			writeErrorResponse(w, s3Err, r.URL)
 			return
 		}
 
 	case authTypePresigned, authTypeSigned:
 		if s3Err = reqSignatureV4Verify(r, globalServerConfig.GetRegion()); s3Err != ErrNone {
-			errorIf(errSignatureMismatch, "%s", dumpRequest(r))
 			writeErrorResponse(w, s3Err, r.URL)
 			return
 		}
@@ -1069,20 +1066,17 @@ func (api objectAPIHandlers) PutObjectPartHandler(w http.ResponseWriter, r *http
 		var s3Error APIErrorCode
 		reader, s3Error = newSignV4ChunkedReader(r)
 		if s3Error != ErrNone {
-			errorIf(errSignatureMismatch, "%s", dumpRequest(r))
 			writeErrorResponse(w, s3Error, r.URL)
 			return
 		}
 	case authTypeSignedV2, authTypePresignedV2:
 		s3Error := isReqAuthenticatedV2(r)
 		if s3Error != ErrNone {
-			errorIf(errSignatureMismatch, "%s", dumpRequest(r))
 			writeErrorResponse(w, s3Error, r.URL)
 			return
 		}
 	case authTypePresigned, authTypeSigned:
 		if s3Error := reqSignatureV4Verify(r, globalServerConfig.GetRegion()); s3Error != ErrNone {
-			errorIf(errSignatureMismatch, "%s", dumpRequest(r))
 			writeErrorResponse(w, s3Error, r.URL)
 			return
 		}