2. Finding a Service
- Select "Services" at the side of the main Portal page

- Then select the "Diagnostics" tab

- Search for the service you want to run a test on, using the "Postcode" or "Zen Username"

- Once you've found the service, select this to proceed

- When you have selected the service you want to test, select Diagnostics

- Then select Run a test or Run new test if a line test has been done previously

A line test will now be performed on this service.