OpenDCS Issues

Help Page

You can navigate to the Help page via the profile drop-down. There you will find documentation for OpenDCS as well as the HydroDCS. If you can't find what you are looking for there, below are some troubleshooting tips:

LRGS Troubleshooting

Can't connect to LRGS using the OpenDCS software.

Server rejected connection: Server Error: AuthHello from 'lrgsadmin', time stamp difference too large (4738158 seconds) (DDDSAUTHFAILED-47) DDS Authentication failed

This generally means that the system time on the HydroDCS is not accurate. To fix this issue, you can modify the system time on the Edit Settings page.

Is Everything on the HydroDCS Working?

There are several pages that help users understand how well the HydroDCS is functioning. Here is a good explanation of these pages.

The HydroDCS is not Showing New Data

There can be a number of reasons the HydroDCS is not showing new timeseries data. Some of them, as well as some useful mitigation strategies, are listed below:

Check the LRGS Status page.
Look at the status icon next to the profile drop-down. If it is red, then it is likely there is an issue with some of the OpenDCS and LRGS processes that are running on the HydroDCS. The first thing to do here is to navigate to the "Start/Stop OpenDCS" page.

Troubleshooting Page

If you are logged in as a controller, you can view the troubleshooting page. You can get there by using the profile drop-down and selecting Troubleshooting. You can look at some important logs on this page to aid in debugging the HydroDCS.

Notice: Notwithstanding any other lease or license agreement that may pertain to, or accompany the delivery of, this computer software, the rights of the Government regarding its use, reproduction and disclosure are as set forth in Government Contract No. W9127N17D0001. Copyright © 2020 by Olav & Co., Inc. All Rights Reserved.