New cable box not working

I'm very sorry for the inconvenience this has caused @user_a1gbqh , especially after you've already replaced the cable box, changed the coaxial cable, and gone through multiple rounds of troubleshooting. To help narrow this down, are you seeing any specific error code or error message on the TV screen? If so, please let me know what it says, or feel free to share a photo of the message. Also, since your WiFi and other TV services appear to be working properly, that information may help us determine whether the issue is isolated to the newly installed cable box. To help narrow this down, are you seeing any specific error code or error message on the TV screen? If so, please let me know what it says, or feel free to share a photo of the message. Also, since your WiFi and other TV services appear to be working properly, that information may help us determine whether the issue is isolated to the newly installed cable box.