diff --git a/src/controllers/admin.js b/src/controllers/admin.js
index 6892c82f..b0c5df69 100644
--- a/src/controllers/admin.js
+++ b/src/controllers/admin.js
@@ -604,7 +604,7 @@ module.exports.restartServer = function (req, res)
 
 const listOrphanResourcesAux = function (callback)
 {
-    let mongoClient = new DendroMongoClient(Config.mongoDBHost, Config.mongoDbPort, Config.mongoDbCollectionName);
+    let mongoClient = new DendroMongoClient(Config.mongoDBHost, Config.mongoDbPort, Config.mongoDbCollectionName, Config.mongoDBAuth.username, Config.mongoDBAuth.password);
     mongoClient.connect(function (err, mongoDb)
     {
         if (isNull(err) && !isNull(mongoDb))
diff --git a/src/kb/mongo.js b/src/kb/mongo.js
index fa9ac141..3b3e0c6f 100644
--- a/src/kb/mongo.js
+++ b/src/kb/mongo.js
@@ -3,6 +3,7 @@ const slug = rlequire("dendro", "src/utils/slugifier.js");
 const isNull = rlequire("dendro", "src/utils/null.js").isNull;
 
 const MongoClient = require("mongodb").MongoClient;
+const Logger = rlequire("dendro", "src/utils/logger.js").Logger;
 
 function DendroMongoClient (mongoDBHost, mongoDbPort, mongoDbCollectionName, mongoDbUsername, mongoDbPassword)
 {
@@ -29,6 +30,7 @@ DendroMongoClient.prototype.connect = function (callback)
         url = "mongodb://" + self.host + ":" + self.port + "/" + self.collectionName;
     }
 
+    Logger.log("debug", "Connecting to MongoDB using connection string: " + url);
     MongoClient.connect(url, function (err, db)
     {
         if (!err)
@@ -49,7 +51,7 @@ DendroMongoClient.prototype.findFileByFilenameOrderedByDate = function (db, file
         {
             return callback(null, files);
         }
-        const msg = "Error findind document with uri: " + fileUri + " in Mongo error: " + JSON.stringify(err);
+        const msg = "Error finding document with uri: " + fileUri + " in Mongo. error: " + JSON.stringify(err);
         return callback(true, msg);
     });
 };
@@ -64,7 +66,7 @@ DendroMongoClient.prototype.getNonAvatarNorThumbnailFiles = function (db, callba
         {
             return callback(null, files);
         }
-        const msg = "Error when looking for non Avatar nor thumbnail files in Mongo, error: " + JSON.stringify(err);
+        const msg = "Error when looking for non Avatar nor thumbnail files in Mongo. error: " + JSON.stringify(err);
         return callback(true, msg);
     });
 };
diff --git a/src/models/user.js b/src/models/user.js
index c3f6041a..8f94cab4 100644
--- a/src/models/user.js
+++ b/src/models/user.js
@@ -1222,7 +1222,7 @@ User.prototype.saveAvatarInGridFS = function (avatar, extension, callback)
     let avatarUri = "/avatar/" + self.ddr.username + "/avatar." + extension;
     let base64Data = avatar.replace(/^data:image\/png;base64,/, "");
 
-    let mongoClient = new DendroMongoClient(Config.mongoDBHost, Config.mongoDbPort, Config.mongoDbCollectionName);
+    let mongoClient = new DendroMongoClient(Config.mongoDBHost, Config.mongoDbPort, Config.mongoDbCollectionName, Config.mongoDBAuth.username, Config.mongoDBAuth.password);
 
     mongoClient.connect(function (err, mongoDb)
     {
diff --git a/test/routes/admin/list_orphan_resources/routes.admin.listOrphanResources.Test.js b/test/routes/admin/list_orphan_resources/routes.admin.listOrphanResources.Test.js
index a57fcd14..5fcb3c66 100644
--- a/test/routes/admin/list_orphan_resources/routes.admin.listOrphanResources.Test.js
+++ b/test/routes/admin/list_orphan_resources/routes.admin.listOrphanResources.Test.js
@@ -33,7 +33,7 @@ let agent;
 checkFileExistsInGridFs = function (fileUri, callback)
 {
     const DendroMongoClient = rlequire("dendro", "src/kb/mongo.js").DendroMongoClient;
-    let mongoClient = new DendroMongoClient(Config.mongoDBHost, Config.mongoDbPort, Config.mongoDbCollectionName);
+    let mongoClient = new DendroMongoClient(Config.mongoDBHost, Config.mongoDbPort, Config.mongoDbCollectionName, Config.mongoDBAuth.username, Config.mongoDBAuth.password);
     mongoClient.connect(function (err, mongoDb)
     {
         if (isNull(err) && !isNull(mongoDb))
diff --git a/test/routes/admin/nuke_orphan_resources/routes.admin.nukeOrphanResources.Test.js b/test/routes/admin/nuke_orphan_resources/routes.admin.nukeOrphanResources.Test.js
index e344b8ab..dc8521a5 100644
--- a/test/routes/admin/nuke_orphan_resources/routes.admin.nukeOrphanResources.Test.js
+++ b/test/routes/admin/nuke_orphan_resources/routes.admin.nukeOrphanResources.Test.js
@@ -33,7 +33,7 @@ let agent;
 checkFileExistsInGridFs = function (fileUri, callback)
 {
     const DendroMongoClient = rlequire("dendro", "src/kb/mongo.js").DendroMongoClient;
-    let mongoClient = new DendroMongoClient(Config.mongoDBHost, Config.mongoDbPort, Config.mongoDbCollectionName);
+    let mongoClient = new DendroMongoClient(Config.mongoDBHost, Config.mongoDbPort, Config.mongoDbCollectionName, Config.mongoDBAuth.username, Config.mongoDBAuth.password);
     mongoClient.connect(function (err, mongoDb)
     {
         if (isNull(err) && !isNull(mongoDb))