@harrycate98 I moved your post over to the Other Devices space.
This issue is usually specific to the network you're using to access Pandora, or due to an error on the device itself. Let's try some troubleshooting steps to see if we can resolve the issue.
First, make sure your device has the latest firmware by checking for a new update. To do this, press Menu on your remote and scroll down to Support. Then select Software Update. If an update is available, try loading Pandora again once the update is complete.
Next, please try deleting and re-adding the Pandora app from the app store on your Samsung device.
If you're still having the same problem, then please try a few standard network troubleshooting steps:
Try connecting directly via an Ethernet cable rather than using Wi-Fi (if you have this option on your device), and see if that helps.
Try rebooting your modem and router and restarting the device.
You should also contact Samsung directly to troubleshoot your specific device and settings.
You can view their support page here. Or, contact them directly using this link.