Below error message shown when logon to SSIS via SSMS.
In previous versions of SQL Server, by default when you installed SQL Server all users in the Users group had access to the Integration Services service. When you install the current release of SQL Server, users do not have access to the Integration Services service. The service is secure by default. After SQL Server is installed, the administrator must grant access to the service.
To grant access to the Integration Services service
1. Run Dcomcnfg.exe. Dcomcnfg.exe provides a user interface for modifying certain settings in the registry.
2. In the Component Services dialog, expand the Component Services > Computers > My Computer > DCOM Config node.
3. Right-click Microsoft SQL Server Integration Services [ver].0, and then click Properties.
4. On the Security tab, click Edit in the Launch and Activation Permissions area.
5. Add users and assign appropriate permissions, and then click Ok.
6. Repeat steps 4 - 5 for Access Permissions.
8. Restart the Integration Services Service.
Reference : Above are from https://go.microsoft.com/fwlink/?LinkId=506689