Start with the basics: restart the player, verify internet access, and confirm the login details in your activation email. A typo in a URL or password can prevent the whole playlist from loading.
What to check before you start
If playback buffers, test your connection speed and try a wired connection or a less congested Wi-Fi band. Close other high-bandwidth downloads. For a missing EPG, refresh guide data and check the device time zone.
Practical next step
When contacting support, share the device model, player name, affected channel, and exact error. Do not include your password in public messages.