Here is the description of the bug along with a resolution:
The "CMon Server Administration" desktop application (which can be launched from the Start Menu) incorrectly updates the service configuration and application settings in the database, preventing agents from being able to reconnect to the Management Server.
If you open the "CMon Server Administration" desktop application, click on Save, and then restart the "Management Server" windows service, it will prevent agents from reconnecting.
The desktop application incorrectly adds an extra path to the
For example, in
C:\Program Files (x86)\NovaStor\NovaBACKUP Central Management Console\Service\system.serviceModel.services.config
<add baseAddress="net.tcp://localhost:4502/AgentService" />
If you manually modify the file, remove the last segment
/AgentService, and restart the "Management Server" windows service, the agents will start to reconnect successfully.
For example, this is the correct value for the
<add baseAddress="net.tcp://localhost:4502/" />
You will need to fix the configuration file in at least two places.
The desktop application removes the hostname / IP Address from the
HubConnectionUrl value in the
application_settings database table.
For example, the
SettingValue for the
HubConnectionUrl SettingName should be
http://<hostname or IP Address>:80/ManagementServer/signalr
Using SQL Server Management Studio, right-click the the
application_settings table in the
ManagementServer database and choose "Edit Top 200 Rows".