If problems concerning the SignalR component arise, it is necessary to check:

• from the GENERAL tab of the BooleBox On-Premises control panel that the IP address and port of the server on which SignalR was installed have been indicated correctly. After doing this, perform a connection test using the CONNECT button. If the connection test fails, verify that the server hosting the SignalR service is reachable on the network using the specified TCP/IP port;
• from the IIS control panel that the Microsoft Windows IIS service is active and running and that the application site is up & running. If problems regarding the IIS service arise, also check the Microsoft Windows Server log.

Note: if the controls listed in the previous points are not sufficient to solve the problems concerning the SignalR component, it could be useful to check the service status of the same component through the following links: http://serveripaddress:80/check or https://serveripadress:443/check if the SSL/TLS certificate is used. On the displayed page, if the service is working correctly, the “OK” sentence will appear; if the certificate has expired, a warning message indicating that the SSL/TLS certificate is not valid will be displayed. In the case of a blank page, the causes of the fall of the service are to be found in the Windows event viewer.