Issue: When trying to start SQL Server Reporting Services, an error message appear with the following text:

The request failed or the service did not respond in a timely
fashion. Consult the event log or other applicable error logs
for details

After checking the event log:

A timeout was reached (30000 milliseconds) while waiting for the
SQL Server Reporting Services (MSSQLSERVER) service to connect.

Solution:

The Microsoft Windows Service Control Manager controls the state (i.e., started, stopped, paused, etc.) of all installed Windows services. By default, the Service Control Manager will wait 30,000 milliseconds (30 seconds) for a service to respond. However, certain configurations, technical restrictions, or performance issues may result in the service taking longer than 30 seconds to start and report ready to the Service Control Manager.

1. Go to Start > Run > and type regedit
2. Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control
3. With the control folder selected, right click in the pane on the right and select new DWORD Value
4. Name the new DWORD: ServicesPipeTimeout
5. Right-click ServicesPipeTimeout, and then click Modify
6. Click Decimal, type ‘180000’, and then click OK
7. Restart the computer

By editing or creating the ServicesPipeTimeout DWORD value, the Service Control Manager timeout period can be overridden, thereby giving the service more time to start up and report ready to the Service.