If you find that the Optical Light on your Lightstream Fibre ONT (Optical Network Terminal) box is flashing, has gone off or has gone red, this means there may be an issue with the fibre connection coming into your property.

My Optical Light is Flashing, Has Gone Off, or Has Gone Red

Introduction

If you find that the Optical Light on your Lightstream Fibre ONT (Optical Network Terminal) box is flashing, has gone off, or has gone red, this indicates there may be an issue with the fibre connection coming into your property.

What Can I Do?

First, please check that the optical cable which comes through your wall into the ONT hasn't become loose. If it has, try pushing the end into the ONT to make sure it's clicked all the way in. Now turn the ONT off and on again from the main socket on the wall.

Still No Luck?

If you're still having issues with the Optical Light flashing, being off, or showing red, please contact us to report this so we can take a look.

By following these instructions, you should be able to troubleshoot and potentially resolve the issue with your Optical Light. If you continue to experience issues, our KCOM support team is here to help.