An error message is displayed when starting the client in the browser. The following causes are possible:

Wrong Link Notations

Wrongly spelt links in the browser can cause problems.

  1. Check the correct spelling of the link in the browser. The following options are available:
  • Engineering: https://[Hostname]:8443/login
    Example: https://vp-engineering:8443/login
  • Runtime: https://[Hostname]:8443/login
    Example: https://vp-runtime:8443/login
  1. Keep in mind to always use the hostname and no IP addresses.

No Startup of Service on Servers

You can check if the service has been started on the server.

  • A terminal is displayed on the server.
  • You have root permission.
  1. Enter siveillancecontrol status and press Enter.
  1. Check the accuracy of the output:

siveillancecontrol active running

Site name engineering


Auxiliary services:

activemq active

blob active

nginx active

postgresql active

  • If siveillancecontrol is stopped is displayed, the server has to be restarted. In this case, enter siveillancecontrol start and press Enter.
  • The server is started.

No Network Connections

Make sure that a network connection can be established between the server and client.


Establishing the Server IP Address

  • You have root permission.
  1. Open a command prompt.
  1. Enter ifconfig and press Enter.
  • All configured IP addresses are displayed.


Establishing the Client IP Address

  1. Open a command prompt.
  1. Click the Search Windows symbol.
  1. Enter cmd in the input field.
  1. Enter ipconfig /all and press Enter.
  • All configured IP addresses are displayed.


Checking Network Connection

  • The IP addresses of the server and client are known.
  1. Open a command prompt on the client.
  1. Enter ping [ip-address server] and press Enter.
  • An attempt is made to establish a connection to the server over the network. Four packets are sent to the server here. Once the server receives these packets, it acknowledges receipt and sends the packets back to the clients.
  • The specified IP address was reached or could not be reached.

It is possible that some packets are lost. If this only happens sporadically, the loss can be ignored. However, the loss of multiple packets can result from faulty cables, defective network devices or an overloaded network. This can lead to a deteriorated transmission speed. Make sure to inform your administrator in any case.