It depends if the light is flashing fast or slow, this will indicate the problem.
Blinking slowly - The terminal is not connected to optical fibers or does not send optical signals.
Blinking rapidly - The terminal sends optical signals abnormally.
Please confirm all cables are plugged in correctly and try turning the device off and on again.
If you still experience connectivity issues, please contact our support department email@example.com
If you require further assistance please
send a message to our whatsapp help line: https://whatsapp.afrihost.com
or visit our Help Centre: https://www.afrihost.com/site/help_centre
or see our FAQ page: http://faq.afrihost.com