Index: lams_central/src/java/org/lamsfoundation/lams/web/LoginRequestServlet.java
===================================================================
diff -u -rea63f6db0d83cdc29f998531cfad896c5e650a71 -rd9562e031bdfad9636e7ba4d47ae3b4417cd22f7
--- lams_central/src/java/org/lamsfoundation/lams/web/LoginRequestServlet.java	(.../LoginRequestServlet.java)	(revision ea63f6db0d83cdc29f998531cfad896c5e650a71)
+++ lams_central/src/java/org/lamsfoundation/lams/web/LoginRequestServlet.java	(.../LoginRequestServlet.java)	(revision d9562e031bdfad9636e7ba4d47ae3b4417cd22f7)
@@ -175,7 +175,7 @@
 	    response.sendRedirect("j_security_check?j_username=" + login + "&j_password=" + pass);
 	} catch (AuthenticationException e) {
 	    LoginRequestServlet.log.error("Authentication error: ", e);
-	    response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Login Failed - authentication error");
+	    response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Login Failed - authentication error. " + e.getMessage());
 	} catch (UserInfoFetchException e) {
 	    LoginRequestServlet.log.error("User fetch info error: ", e);
 	    response.sendError(HttpServletResponse.SC_BAD_GATEWAY,
Index: lams_common/src/java/org/lamsfoundation/lams/integration/security/Authenticator.java
===================================================================
diff -u -r83f9fae798c6d3d5cd19495c8c2c2d72f98e648e -rd9562e031bdfad9636e7ba4d47ae3b4417cd22f7
--- lams_common/src/java/org/lamsfoundation/lams/integration/security/Authenticator.java	(.../Authenticator.java)	(revision 83f9fae798c6d3d5cd19495c8c2c2d72f98e648e)
+++ lams_common/src/java/org/lamsfoundation/lams/integration/security/Authenticator.java	(.../Authenticator.java)	(revision d9562e031bdfad9636e7ba4d47ae3b4417cd22f7)
@@ -101,7 +101,7 @@
 	    Date now = new Date();
 	    if (requestTimePlusTimeToLive.before(now)) {
 		throw new AuthenticationException("Login Request can't be older than " + timeToLiveLoginRequest
-			+ "minutes. Request time is: " + new Date(datetimeParam));
+			+ " minutes. Please, refresh your previous page and try again.");
 	    }
 	}