Test Smart Hub service using a different device. To ensure the problem is not equipment-related, test your service by connecting an alternate device, such as a tablet, phone or laptop.
If the services work on the alternate device, the issue is isolated to your initial device. Please troubleshoot that specific unit.
You can also try to disconnect it from Wi-Fi, forgetting the network and reconnecting again.
If you are using a Wi-Fi connection, test your services using an Ethernet cable
Plug one end of the Ethernet cable to the back of your Smart Hub and the other end to your computer
Test your service by opening a new web browser page
If you can connect over Ethernet but not over Wi-Fi, proceed to the next step