diff --git a/app/models/auth_source_ldap.rb b/app/models/auth_source_ldap.rb
index 8ed7ce27f..888493338 100644
--- a/app/models/auth_source_ldap.rb
+++ b/app/models/auth_source_ldap.rb
@@ -63,7 +63,7 @@ class AuthSourceLdap < AuthSource
       end
     end
   rescue *NETWORK_EXCEPTIONS => e
-    raise AuthSourceException.new(e.message)
+    raise AuthSourceException.new("#{auth_method_name}: #{e.message}")
   end
 
   # Test the connection to the LDAP
@@ -77,7 +77,7 @@ class AuthSourceLdap < AuthSource
       end
     end
   rescue *NETWORK_EXCEPTIONS => e
-    raise AuthSourceException.new(e.message)
+    raise AuthSourceException.new("#{auth_method_name}: #{e.message}")
   end
 
   def auth_method_name
@@ -107,7 +107,7 @@ class AuthSourceLdap < AuthSource
     end
     results
   rescue *NETWORK_EXCEPTIONS => e
-    raise AuthSourceException.new(e.message)
+    raise AuthSourceException.new("#{auth_method_name}: #{e.message}")
   end
 
   def ldap_mode
@@ -144,7 +144,7 @@ class AuthSourceLdap < AuthSource
       return yield
     end
   rescue Timeout::Error => e
-    raise AuthSourceTimeoutException.new(e.message)
+    raise AuthSourceTimeoutException.new("#{auth_method_name}: #{e.message}")
   end
 
   def ldap_filter
diff --git a/test/unit/auth_source_ldap_test.rb b/test/unit/auth_source_ldap_test.rb
index cec88ae7e..dd8506788 100644
--- a/test/unit/auth_source_ldap_test.rb
+++ b/test/unit/auth_source_ldap_test.rb
@@ -168,9 +168,10 @@ class AuthSourceLdapTest < ActiveSupport::TestCase
       auth_source.timeout = 1
       def auth_source.initialize_ldap_con(*args); sleep(5); end
 
-      assert_raise AuthSourceTimeoutException do
+      error = assert_raise AuthSourceTimeoutException do
         auth_source.authenticate 'example1', '123456'
       end
+      assert_match /\ALDAP: /, error.message
     end
 
     def test_search_should_return_matching_entries
@@ -210,9 +211,10 @@ class AuthSourceLdapTest < ActiveSupport::TestCase
       auth_source.host = "badhost"
       auth_source.save!
 
-      assert_raise AuthSourceException do
+      error = assert_raise AuthSourceException do
         auth_source.test_connection
       end
+      assert_match /\ALDAP: /, error.message
     end
 
     def test_test_connection_with_incorrect_port