When possible, always try to find or pinpoint the cause of an issue. This leads to a reduced wait for you and a lesser load for us.
If there are any errors present, make note of the specifics. Are there error codes, descriptions? This helps greatly to a speedy resolution.
If a service is not working on one device, try a different one in the same unit to narrow down if it's an issue with a single device.
Unless physically impossible, always turn it off and back on. Forget and reconnect. Unplug and reconnect.
If your issue persists, let us know what you tried and any error messages you received