Hi @StiFenclii,
1, For error “The request failed with HTTP status 503: Service Unavailable “, I found a similar threader.
When you install the SQL server reporting services, you will be asked for the trail of 180 days or input the license key of the SQL server. If you choose trail, then after 180 days, you may get this error. Please help check ReportingServicesService_x_x_x.log, the location is C:\Program Files\Microsoft SQL Server Reporting Services\SSRS\LogFiles. If you are also seeing the same error as shown in the following link, we need to reinstall the SQL server reporting services.
The similar threader link for your reference:
Note: Microsoft provides third-party contact information to help you understand the problem. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.
2, If this method does not help you, please help check ReportingServicesService_x_x_x.log to see if there is any useful information for our reference.
Looking forward to your reply.
Best regards,
Cherry
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