KB Issue

In SQL Server Management Studio, when you Right-click SQL Server Agent and choose Start and receive the following error message, "The object invoked has disconnected from its clients. [0x80010108]".

Issue Details

In [SQL Server Management Studio] (SSMS), when you Right-click [SQL Server Agent] (Agent) and choose Start and receive the following error message, "The object invoked has disconnected from its clients. [0x80010108]".

There are several reasons this may happen.
Here, we list all the ways we have resolved the issue. If you find this is not the resolution to your problem, please check elsewhere online for other articles on this subject.

Recreate Issue

Some scenarios are hard to reproduce. Here we will try to list these issues as we encounter them.

[Scenario #1:]

Always On High Availability [AOHA] Issue
The [Agent] was not running on SQL-06; however, SQL-06 was not the Primary Role server at that time. This could very well have been the cause of the error, since SQL-06 was not the primary holder of the account when we tried to invoke the [Agent].

Resolve Issue

[Scenario #1:]

#1A Always On High Availability Issue
Make sure that when you try to start the [Agent] in an [AOHA], the server instance associated with the [Agent] is also the Primary Role Instance of the Group.
If not, disconnect from the [AOHA] and reconnect again in SSMS.
Then check whether both are the same.

Right-click on the [Agent] and choose [Properties]
On the left panel towards the bottom, you will see [Connection]This section will display the Server you are currently connected to.

=NEXT=

Right-click on [AOHA]

Choose [Show Dashboard]
When the page opens, you will see the [Primary Instance].
This instance should be the same as the AgentMake sure [Agent] is running

[Option #1:]

In [SSMS]
Right-click on the [SQL Server Agent] and choose [Start]

[Option #2: (Desktop Experience)]

Open [Control Panel]
Then [Administrator Tools]
Then [Services]
Scroll down to the [SQL Server Group]
Right-click on the [SQL Server Agent] and choose [Start]

[Option #3: (Server Core (Non-Desktop)]

On a workstation or dedicated Server with Desktop Experience.

Right-click on the [Start menu]
Choose [Computer Management]
When the window opens.
Right-click [Computer Management] and choose [Connect to another computer...]
Click the radio button beside [Another computer]
Type in the server instance name (Example: ServerCore-01).
After the window loads, the connected server is displayed.
Expand [Services and Applications]
Click on [Services]
Scroll down to the [SQL Server Group]
Right-click on the [SQL Server Agent] and choose [Start]