Hi MrsEMH,
Thank you for your post and welcome to the forums.
Sorry to hear that you've been having this issue. Can I ask how long you have been having it for and if this is still present at the moment? If so, you could look at this helpful link; here. We wouldn't jump straight to replacing the box, we would make sure diagnostics are done first 🙂
Cheers.
Ryan_N - Forum Team - https://community.virginmedia.com/t5/custom/page/page-id/WelcomeGoodFolk